Create 2.286.0 Runner release.

* github-praph.png deleted extra background

* background around tentacles of mascot also deleted

.editorconfig

@@ -0,0 +1,8 @@
+# https://editorconfig.org/
+
+[*]
+insert_final_newline = true # ensure all files end with a single newline
+trim_trailing_whitespace = true # attempt to remove trailing whitespace on save
+
+[*.md]
+trim_trailing_whitespace = false # in markdown, "two trailing spaces" is unfortunately meaningful; it means `<br>`

.gitattributes

@@ -20,7 +20,7 @@
 #
 # Merging from the command prompt will add diff markers to the files if there
 # are conflicts (Merging from VS is not affected by the settings below, in VS
-# the diff markers are never inserted). Diff markers may cause the following 
+# the diff markers are never inserted). Diff markers may cause the following
 # file extensions to fail to load in VS. An alternative would be to treat
 # these files as binary and thus will always conflict and require user
 # intervention with every merge. To do so, just uncomment the entries below
@@ -70,9 +70,9 @@
 
 ###############################################################################
 # diff behavior for common document formats
-# 
+#
 # Convert binary document formats to text before diffing them. This feature
-# is only available from the command line. Turn it on by uncommenting the 
+# is only available from the command line. Turn it on by uncommenting the
 # entries below.
 ###############################################################################
 *.doc   diff=astextplain

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,12 +1,18 @@
 ---
-name: Bug report
+name: 🛑 Report a bug in the runner application
-about: Create a report to help us improve
+about: If you have issues with GitHub Actions, please follow the "support for GitHub Actions" link, below.
 title: ''
 labels: bug
 assignees: ''
 
 ---
 
+<!--
+👋 You're opening a bug report against the GitHub Actions **runner application**.
+
+🛑 Please stop if you're not certain that the bug you're seeing is in the runner application - if you have general problems with actions, workflows, or runners, please see the [GitHub Community Support Forum](https://github.community/c/code-to-cloud/52) which is actively monitored.  Using the forum ensures that we route your problem to the correct team.  😃
+-->
+
 **Describe the bug**
 A clear and concise description of what the bug is.
 

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,11 @@
+blank_issues_enabled: false
+contact_links:
+  - name: ✅ Support for GitHub Actions
+    url: https://github.community/c/code-to-cloud/52
+    about: If you have questions about GitHub Actions or need support writing workflows, please ask in the GitHub Community Support forum.
+  - name: ✅ Feedback and suggestions for GitHub Actions
+    url: https://github.com/github/feedback/discussions/categories/actions-and-packages-feedback
+    about: If you have feedback or suggestions about GitHub Actions, please open a discussion (or add to an existing one) in the GitHub Actions Feedback.  GitHub Actions Product Managers and Engineers monitor the feedback forum.
+  - name: ‼️ GitHub Security Bug Bounty
+    url: https://bounty.github.com/
+    about: Please report security vulnerabilities here.

.github/ISSUE_TEMPLATE/enhancement_request.md

@@ -1,19 +1,24 @@
 ---
-name: Feature Request
+name: 🛑 Request a feature in the runner application 
-about: Create a request to help us improve
+about: If you have feature requests for GitHub Actions, please use the "feedback and suggestions for GitHub Actions" link below.
 title: ''
 labels: enhancement
 assignees: ''
 
 ---
 
-Thank you 🙇‍♀ for wanting to create a feature in this repository. Before you do, please ensure you are filing the issue in the right place. Issues should only be opened on if the issue **relates to code in this repository**.  
+<!--
+👋 You're opening a request for an enhancement in the GitHub Actions **runner application**.
 
+🛑 Please stop if you're not certain that the feature you want is in the runner application - if you have a suggestion for improving GitHub Actions, please see the [GitHub Actions Feedback](https://github.com/github/feedback/discussions/categories/actions-and-packages-feedback) discussion forum which is actively monitored.  Using the forum ensures that we route your problem to the correct team.  😃
+
+Some additional useful links:
 * If you have found a security issue [please submit it here](https://hackerone.com/github)
 * If you have questions or issues with the service, writing workflows or actions, then please [visit the GitHub Community Forum's Actions Board](https://github.community/t5/GitHub-Actions/bd-p/actions)
-* If you are having an issue or question about GitHub Actions then please [contact customer support](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/about-github-actions#contacting-support)
+* If you are having an issue or have a question about GitHub Actions then please [contact customer support](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/about-github-actions#contacting-support)
 
 If you have a feature request that is relevant to this repository, the runner, then please include the information below:
+-->
 
 **Describe the enhancement**
 A clear and concise description of what the features or enhancement you need.
@@ -24,4 +29,4 @@ If applicable, add a code snippet.
 **Additional information**
 Add any other context about the feature here.
 
-NOTE: if the feature request has been agreed upon then the assignee will create an ADR.   See docs/adrs/README.md
+NOTE: if the feature request has been agreed upon then the assignee will create an ADR.   See docs/adrs/README.md

.github/workflows/build.yml

@@ -7,12 +7,12 @@ on:
     - main
     - releases/*
     paths-ignore:
-    - '**.md'    
+    - '**.md'
   pull_request:
     branches:
     - '*'
     paths-ignore:
-    - '**.md'    
+    - '**.md'
 
 jobs:
   build:
@@ -57,6 +57,29 @@ jobs:
       working-directory: src
       if: matrix.runtime != 'linux-arm64' && matrix.runtime != 'linux-arm'
 
+    # Check runtime/externals hash
+    - name: Compute/Compare runtime and externals Hash
+      shell: bash
+      run: |
+        echo "Current dotnet runtime hash result: $DOTNET_RUNTIME_HASH"
+        echo "Current Externals hash result: $EXTERNALS_HASH"
+
+        NeedUpdate=0
+        if [ "$EXTERNALS_HASH" != "$(cat ./src/Misc/contentHash/externals/${{ matrix.runtime }})" ] ;then
+          echo Hash mismatch, Update ./src/Misc/contentHash/externals/${{ matrix.runtime }} to $EXTERNALS_HASH
+          NeedUpdate=1
+        fi
+
+        if [ "$DOTNET_RUNTIME_HASH" != "$(cat ./src/Misc/contentHash/dotnetRuntime/${{ matrix.runtime }})" ] ;then
+          echo Hash mismatch, Update ./src/Misc/contentHash/dotnetRuntime/${{ matrix.runtime }} to $DOTNET_RUNTIME_HASH
+          NeedUpdate=1
+        fi
+
+        exit $NeedUpdate
+      env:
+        DOTNET_RUNTIME_HASH: ${{hashFiles('**/_layout_trims/runtime/**/*')}}
+        EXTERNALS_HASH: ${{hashFiles('**/_layout_trims/externals/**/*')}}
+
     # Create runner package tar.gz/zip
     - name: Package Release
       if: github.event_name != 'pull_request'
@@ -67,7 +90,11 @@ jobs:
     # Upload runner package tar.gz/zip as artifact
     - name: Publish Artifact
       if: github.event_name != 'pull_request'
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v2
       with:
         name: runner-package-${{ matrix.runtime }}
-        path: _package
+        path: | 
+          _package
+          _package_trims/trim_externals
+          _package_trims/trim_runtime
+          _package_trims/trim_runtime_externals

.github/workflows/codeql.yml

@@ -1,7 +1,12 @@
 name: "Code Scanning - Action"
 
+permissions:
+  security-events: write
+
 on:
   push:
+    branches: 
+      - main
   pull_request:
   schedule:
     - cron: '0 0 * * 0'
@@ -28,7 +33,7 @@ jobs:
       #   languages: go, javascript, csharp, python, cpp, java
 
     - name: Manual build
-      run : | 
+      run : |
         ./dev.sh layout Release linux-x64
       working-directory: src
 

.github/workflows/e2etest.yml

@@ -1,335 +0,0 @@
-name: Runner E2E Test
-
-on:
-  workflow_dispatch:
-  push:
-    branches:
-    - main
-    - releases/*
-
-jobs:
-  init:
-    name: Initialize workflow ☕
-    runs-on: ubuntu-latest
-    outputs:
-      unique_runner_label: ${{steps.generator.outputs.runner_label}}
-    steps:
-    - name: Delete all runners
-      uses: actions/github-script@v3
-      with:
-        debug: true
-        script: |
-          var runnersResp = await github.actions.listSelfHostedRunnersForRepo({
-              owner: 'actions',
-              repo: 'runner',
-              per_page: '100'
-          });
-          for(var i=0; i<runnersResp.data.total_count; i++){
-            core.debug(JSON.stringify(runnersResp.data.runners[i]))
-            await github.actions.deleteSelfHostedRunnerFromRepo({
-              owner: 'actions',
-              repo: 'runner',
-              runner_id: runnersResp.data.runners[i].id
-            });
-          }
-        github-token: ${{secrets.PAT}}
-    - name: Generate Unique Runner label
-      id: generator
-      run: |
-        label=$(openssl rand -hex 16)
-        echo ::set-output name=runner_label::$label
-
-  build:
-    name: Build runner packages 🏗 📦
-    strategy:
-      matrix:
-        runtime: [ linux-x64, linux-arm64, linux-arm, win-x64, osx-x64 ]
-        include:
-        - runtime: linux-x64
-          os: ubuntu-latest
-          devScript: ./dev.sh
-
-        - runtime: linux-arm64
-          os: ubuntu-latest
-          devScript: ./dev.sh
-
-        - runtime: linux-arm
-          os: ubuntu-latest
-          devScript: ./dev.sh
-
-        - runtime: osx-x64
-          os: macOS-latest
-          devScript: ./dev.sh
-
-        - runtime: win-x64
-          os: windows-latest
-          devScript: ./dev
-
-    runs-on: ${{ matrix.os }}
-    steps:
-    - uses: actions/checkout@v1
-
-    # Build runner layout
-    - name: Build & Layout Release
-      run: |
-        ${{ matrix.devScript }} layout Release ${{ matrix.runtime }}
-      working-directory: src
-    
-    # Create runner package tar.gz/zip
-    - name: Package Release
-      run: |
-         ${{ matrix.devScript }} package Release ${{ matrix.runtime }}
-      working-directory: src
-
-    # Upload runner package tar.gz/zip as artifact
-    - name: Publish Artifact
-      uses: actions/upload-artifact@v1
-      with:
-        name: runner-package-${{ matrix.runtime }}
-        path: _package
-
-  dispatch_workflow:
-    name: Dispatch workflow to runners 🚨
-    needs: [init, build]
-    runs-on: ubuntu-latest
-    steps:
-    - name: Dispatch workflow
-      timeout-minutes: 10
-      uses: actions/github-script@v3
-      with:
-        debug: true
-        script: |
-          function sleep(ms) { return new Promise(resolve => setTimeout(resolve, ms)); }
-          async function dispatchWorkflow(runner) {
-            await github.actions.createWorkflowDispatch({
-              owner: 'actions',
-              repo: 'runner',
-              workflow_id: 'runner-basic-e2e-test-case.yml',
-              ref: 'main',
-              inputs: {target_runner: runner}
-            });
-          }
-          var runWin64 = false, runLinux64 = false, runOsx64 = false, runLinuxARM64 = false;
-          while (true) {
-            core.info(`------------- Waiting for runners to be configured --------------`)
-            await sleep(10000);
-            var runnersResp = await github.actions.listSelfHostedRunnersForRepo({owner: 'actions', repo: 'runner', per_page: '100'});
-            for (var i = 0; i < runnersResp.data.total_count; i++) {
-              core.debug(JSON.stringify(runnersResp.data.runners[i]))
-              var labels = runnersResp.data.runners[i].labels;
-              for (var j = 0; j < labels.length; j++) {
-                core.debug(`Comparing: ${labels[j].name} to win-x64/linux-x64/osx-x64/linux-arm64-${{ needs.init.outputs.unique_runner_label }}`)
-                if (labels[j].name == 'win-x64-${{needs.init.outputs.unique_runner_label}}' && runWin64 == false) {
-                  core.info(`------------------- Windows runner is configured, queue Windows Run -------------------------`)
-                  runWin64 = true;
-                  await dispatchWorkflow('win-x64-${{needs.init.outputs.unique_runner_label}}');
-                  break;
-                } else if (labels[j].name == 'linux-x64-${{needs.init.outputs.unique_runner_label}}' && runLinux64 == false) {
-                  core.info(`------------------- Linux runner is configured, queue Linux Run -------------------------`)
-                  runLinux64 = true;
-                  await dispatchWorkflow('linux-x64-${{needs.init.outputs.unique_runner_label}}');
-                  break;
-                } else if (labels[j].name == 'osx-x64-${{needs.init.outputs.unique_runner_label}}' && runOsx64 == false) {
-                  core.info(`------------------- macOS runner is configured, queue macOS Run -------------------------`)
-                  runOsx64 = true;
-                  await dispatchWorkflow('osx-x64-${{needs.init.outputs.unique_runner_label}}');
-                  break;
-                } else if (labels[j].name == 'linux-arm64-${{needs.init.outputs.unique_runner_label}}' && runLinuxARM64 == false) {
-                  core.info(`------------------- Linux ARM64 runner is configured, queue Linux ARM64 Run-------------------------`)
-                  runLinuxARM64 = true;
-                  await dispatchWorkflow('linux-arm64-${{needs.init.outputs.unique_runner_label}}');
-                  break;
-                }
-              }
-            }
-            if (runWin64 && runLinux64 && runOsx64 && runLinuxARM64) {
-              core.info(`--------------------- ALL runner are running jobs --------------------------`)
-              break;
-            } else {
-              core.info(`---------- Windows running: ${runWin64} -- Linux running: ${runLinux64} -- macOS running: ${runOsx64} -- Linux ARM64 running: ${runLinuxARM64} -----------`)
-            }
-          }
-        github-token: ${{secrets.PAT}}
-
-  LinuxE2E:
-    needs: [build, init]
-    runs-on: ubuntu-latest
-    steps:
-      - name: Download Runner
-        uses: actions/download-artifact@v2
-        with:
-          name: runner-package-linux-x64
-      - name: Unzip Runner Package
-        run: |
-          tar -xzf *.tar.gz
-      - name: Configure Runner
-        env:
-          unique_runner_name: linux-x64-${{needs.init.outputs.unique_runner_label}}
-        run: |
-          ./config.sh --url ${{github.event.repository.html_url}} --unattended --name $unique_runner_name --pat ${{secrets.PAT}} --labels $unique_runner_name --replace
-      - name: Start Runner and Wait for Job
-        timeout-minutes: 5
-        run: |
-          ./run.sh --once
-      - name: Remove Runner
-        if: always()
-        continue-on-error: true
-        run: |
-          ./config.sh remove --pat ${{secrets.PAT}}
-      - name: Upload Runner Logs
-        if: always()
-        uses: actions/upload-artifact@v2
-        with:
-          name: linux_x64_logs
-          path: _diag
-  macOSE2E:
-    needs: [build, init]
-    runs-on: macos-latest
-    steps:
-      - name: Download Runner
-        uses: actions/download-artifact@v2
-        with:
-          name: runner-package-osx-x64
-      - name: Unzip Runner Package
-        run: |
-          tar -xzf *.tar.gz
-      - name: Configure Runner
-        env:
-          unique_runner_name: osx-x64-${{needs.init.outputs.unique_runner_label}}
-        run: |
-          ./config.sh --url ${{github.event.repository.html_url}} --unattended --name $unique_runner_name --pat ${{secrets.PAT}} --labels $unique_runner_name --replace
-      - name: Start Runner and Wait for Job
-        timeout-minutes: 5
-        run: |
-          ./run.sh --once
-      - name: Remove Runner
-        if: always()
-        continue-on-error: true
-        run: |
-          ./config.sh remove --pat ${{secrets.PAT}}
-      - name: Upload Runner Logs
-        if: always()
-        uses: actions/upload-artifact@v2
-        with:
-          name: osx_x64_logs
-          path: _diag
-
-  ARM64E2E:
-    needs: [build, init]
-    runs-on: ubuntu-latest
-    steps:
-      - name: Download Runner
-        uses: actions/download-artifact@v2
-        with:
-          name: runner-package-linux-arm64
-      - name: Unzip Runner Package
-        run: |
-          tar -xzf *.tar.gz
-      - name: Prepare QEMU
-        run: |
-          docker run --rm --privileged multiarch/qemu-user-static:register --reset
-      - name: Configure Runner
-        uses: docker://multiarch/ubuntu-core:arm64-bionic
-        with:
-          args: 'bash -c "apt-get update && apt-get install -y curl && ./bin/installdependencies.sh && ./config.sh --unattended --name $unique_runner_name --url ${{github.event.repository.html_url}} --pat ${{secrets.PAT}} --labels $unique_runner_name  --replace"'
-        env:
-          RUNNER_ALLOW_RUNASROOT: 1
-          unique_runner_name: linux-arm64-${{needs.init.outputs.unique_runner_label}}
-
-      - name: Start Runner and Wait for Job
-        timeout-minutes: 5
-        uses: docker://multiarch/ubuntu-core:arm64-bionic
-        with:
-          args: 'bash -c "apt-get update && apt-get install -y curl git && ./bin/installdependencies.sh && ./run.sh --once"'
-        env:
-          RUNNER_ALLOW_RUNASROOT: 1
-
-      - name: Remove Runner
-        if: always()
-        continue-on-error: true
-        uses: docker://multiarch/ubuntu-core:arm64-bionic
-        with:
-          args: 'bash -c "apt-get update && apt-get install -y curl && ./bin/installdependencies.sh && ./config.sh remove --pat ${{secrets.PAT}}"'
-        env:
-          RUNNER_ALLOW_RUNASROOT: 1
-
-      - name: Upload Runner Logs
-        if: always()
-        uses: actions/upload-artifact@v2
-        with:
-          name: linux_arm64_logs
-          path: _diag
-
-  WindowsE2E:
-    needs: [build, init]
-    runs-on: windows-latest
-    steps:
-      - name: Download Runner
-        uses: actions/download-artifact@v2
-        with:
-          name: runner-package-win-x64
-      - name: Unzip Runner Package
-        run: |
-          Get-ChildItem *.zip | Expand-Archive -DestinationPath $PWD
-      - name: Configure Runner
-        shell: cmd
-        run: |
-          config.cmd --unattended --url ${{github.event.repository.html_url}} --name %unique_runner_name% --pat ${{secrets.PAT}} --labels %unique_runner_name% --replace
-        env:
-          unique_runner_name: win-x64-${{needs.init.outputs.unique_runner_label}}
-
-      - name: Start Runner and Wait for Job
-        shell: cmd
-        timeout-minutes: 5
-        run: |
-          run.cmd --once
-      - name: Remove Runner
-        shell: cmd
-        if: always()
-        continue-on-error: true
-        run: |
-          config.cmd remove --pat ${{secrets.PAT}}
-      - name: Upload Runner Logs
-        if: always()
-        uses: actions/upload-artifact@v2
-        with:
-          name: win_x64_logs
-          path: _diag
-  
-  check:
-    name: Check runner logs 🕵️‍♂️
-    needs: [WindowsE2E, LinuxE2E, macOSE2E, ARM64E2E]
-    runs-on: ubuntu-latest
-    steps:
-    - name: Download Linux Runner Logs
-      uses: actions/download-artifact@v2
-      with:
-        name: linux_x64_logs
-        path: linux_x64_logs
-    - name: Download macOS Runner Logs
-      uses: actions/download-artifact@v2
-      with:
-        name: osx_x64_logs
-        path: osx_x64_logs
-    - name: Download Linux ARM64 Runner Logs
-      uses: actions/download-artifact@v2
-      with:
-        name: linux_arm64_logs
-        path: linux_arm64_logs
-    - name: Download Windows Runner Logs
-      uses: actions/download-artifact@v2
-      with:
-        name: win_x64_logs
-        path: win_x64_logs
-    - name: Check Runner Logs
-      run: |
-        function failed()
-        {
-            local error=${1:-Undefined error}
-            echo "Failed: $error" >&2
-            exit 1
-        }
-        grep -R "completed with result: Succeeded" ./win_x64_logs || failed "Windows Runner fail to run the job, please check logs"
-        grep -R "completed with result: Succeeded" ./linux_x64_logs || failed "Linux Runner fail to run the job, please check logs"
-        grep -R "completed with result: Succeeded" ./osx_x64_logs || failed "macOS Runner fail to run the job, please check logs"
-        grep -R "completed with result: Succeeded" ./linux_arm64_logs || failed "Linux ARM64 Runner fail to run the job, please check logs"

.github/workflows/release.yml

@@ -5,7 +5,7 @@ on:
   push:
     paths:
     - releaseVersion
-  
+
 jobs:
   check:
     if: startsWith(github.ref, 'refs/heads/releases/') || github.ref == 'refs/heads/main'
@@ -13,8 +13,8 @@ jobs:
     steps:
     - uses: actions/checkout@v2
 
-    # Make sure ./releaseVersion match ./src/runnerversion 
+    # Make sure ./releaseVersion match ./src/runnerversion
-    # Query GitHub release ensure version is not used 
+    # Query GitHub release ensure version is not used
     - name: Check version
       uses: actions/github-script@0.3.0
       with:
@@ -42,7 +42,7 @@ jobs:
               throw e
             }
           }
-  
+
   build:
     needs: check
     outputs:
@@ -51,6 +51,21 @@ jobs:
       linux-arm-sha: ${{ steps.sha.outputs.linux-arm-sha256 }}
       win-x64-sha: ${{ steps.sha.outputs.win-x64-sha256 }}
       osx-x64-sha: ${{ steps.sha.outputs.osx-x64-sha256 }}
+      linux-x64-sha-noexternals: ${{ steps.sha_noexternals.outputs.linux-x64-sha256 }}
+      linux-arm64-sha-noexternals: ${{ steps.sha_noexternals.outputs.linux-arm64-sha256 }}
+      linux-arm-sha-noexternals: ${{ steps.sha_noexternals.outputs.linux-arm-sha256 }}
+      win-x64-sha-noexternals: ${{ steps.sha_noexternals.outputs.win-x64-sha256 }}
+      osx-x64-sha-noexternals: ${{ steps.sha_noexternals.outputs.osx-x64-sha256 }}
+      linux-x64-sha-noruntime: ${{ steps.sha_noruntime.outputs.linux-x64-sha256 }}
+      linux-arm64-sha-noruntime: ${{ steps.sha_noruntime.outputs.linux-arm64-sha256 }}
+      linux-arm-sha-noruntime: ${{ steps.sha_noruntime.outputs.linux-arm-sha256 }}
+      win-x64-sha-noruntime: ${{ steps.sha_noruntime.outputs.win-x64-sha256 }}
+      osx-x64-sha-noruntime: ${{ steps.sha_noruntime.outputs.osx-x64-sha256 }}
+      linux-x64-sha-noruntime-noexternals: ${{ steps.sha_noruntime_noexternals.outputs.linux-x64-sha256 }}
+      linux-arm64-sha-noruntime-noexternals: ${{ steps.sha_noruntime_noexternals.outputs.linux-arm64-sha256 }}
+      linux-arm-sha-noruntime-noexternals: ${{ steps.sha_noruntime_noexternals.outputs.linux-arm-sha256 }}
+      win-x64-sha-noruntime-noexternals: ${{ steps.sha_noruntime_noexternals.outputs.win-x64-sha256 }}
+      osx-x64-sha-noruntime-noexternals: ${{ steps.sha_noruntime_noexternals.outputs.osx-x64-sha256 }}
     strategy:
       matrix:
         runtime: [ linux-x64, linux-arm64, linux-arm, win-x64, osx-x64 ]
@@ -99,14 +114,6 @@ jobs:
         ${{ matrix.devScript }} package Release ${{ matrix.runtime }}
       working-directory: src
 
-    # Upload runner package tar.gz/zip as artifact.
-    # Since each package name is unique, so we don't need to put ${{matrix}} info into artifact name
-    - name: Publish Artifact
-      if: github.event_name != 'pull_request'
-      uses: actions/upload-artifact@v1
-      with:
-        name: runner-packages
-        path: _package
     # compute shas and set as job outputs to use in release notes
     - run: brew install coreutils #needed for shasum util
       if: ${{ matrix.os == 'macOS-latest' }}
@@ -120,6 +127,91 @@ jobs:
       id: sha
       name: Compute SHA256
       working-directory: _package
+    - run: |
+        file=$(ls)
+        sha=$(sha256sum $file | awk '{ print $1 }')
+        echo "Computed sha256: $sha for $file"
+        echo "::set-output name=${{matrix.runtime}}-sha256::$sha"
+        echo "::set-output name=sha256::$sha"
+      shell: bash
+      id: sha_noexternals
+      name: Compute SHA256
+      working-directory: _package_trims/trim_externals
+    - run: |
+        file=$(ls)
+        sha=$(sha256sum $file | awk '{ print $1 }')
+        echo "Computed sha256: $sha for $file"
+        echo "::set-output name=${{matrix.runtime}}-sha256::$sha"
+        echo "::set-output name=sha256::$sha"
+      shell: bash
+      id: sha_noruntime
+      name: Compute SHA256
+      working-directory: _package_trims/trim_runtime
+    - run: |
+        file=$(ls)
+        sha=$(sha256sum $file | awk '{ print $1 }')
+        echo "Computed sha256: $sha for $file"
+        echo "::set-output name=${{matrix.runtime}}-sha256::$sha"
+        echo "::set-output name=sha256::$sha"
+      shell: bash
+      id: sha_noruntime_noexternals
+      name: Compute SHA256
+      working-directory: _package_trims/trim_runtime_externals
+    
+    - name: Create trimmedpackages.json for ${{ matrix.runtime }}
+      if: matrix.runtime == 'win-x64'
+      uses: actions/github-script@0.3.0
+      with:
+        github-token: ${{secrets.GITHUB_TOKEN}}
+        script: |
+          const core = require('@actions/core')
+          const fs = require('fs');
+          const runnerVersion = fs.readFileSync('src/runnerversion', 'utf8').replace(/\n$/g, '')
+          var trimmedPackages = fs.readFileSync('src/Misc/trimmedpackages_zip.json', 'utf8').replace(/<RUNNER_VERSION>/g, runnerVersion).replace(/<RUNNER_PLATFORM>/g, '${{ matrix.runtime }}')
+          trimmedPackages = trimmedPackages.replace(/<RUNTIME_HASH>/g, '${{hashFiles('**/_layout_trims/runtime/**/*')}}')
+          trimmedPackages = trimmedPackages.replace(/<EXTERNALS_HASH>/g, '${{hashFiles('**/_layout_trims/externals/**/*')}}')
+
+          trimmedPackages = trimmedPackages.replace(/<NO_RUNTIME_EXTERNALS_HASH>/g, '${{steps.sha_noruntime_noexternals.outputs.sha256}}')
+          trimmedPackages = trimmedPackages.replace(/<NO_RUNTIME_HASH>/g, '${{steps.sha_noruntime.outputs.sha256}}')
+          trimmedPackages = trimmedPackages.replace(/<NO_EXTERNALS_HASH>/g, '${{steps.sha_noexternals.outputs.sha256}}')
+
+          console.log(trimmedPackages)
+          fs.writeFileSync('${{ matrix.runtime }}-trimmedpackages.json', trimmedPackages)
+
+    - name: Create trimmedpackages.json for ${{ matrix.runtime }}
+      if: matrix.runtime != 'win-x64'
+      uses: actions/github-script@0.3.0
+      with:
+        github-token: ${{secrets.GITHUB_TOKEN}}
+        script: |
+          const core = require('@actions/core')
+          const fs = require('fs');
+          const runnerVersion = fs.readFileSync('src/runnerversion', 'utf8').replace(/\n$/g, '')
+          var trimmedPackages = fs.readFileSync('src/Misc/trimmedpackages_targz.json', 'utf8').replace(/<RUNNER_VERSION>/g, runnerVersion).replace(/<RUNNER_PLATFORM>/g, '${{ matrix.runtime }}')
+          trimmedPackages = trimmedPackages.replace(/<RUNTIME_HASH>/g, '${{hashFiles('**/_layout_trims/runtime/**/*')}}')
+          trimmedPackages = trimmedPackages.replace(/<EXTERNALS_HASH>/g, '${{hashFiles('**/_layout_trims/externals/**/*')}}')
+
+          trimmedPackages = trimmedPackages.replace(/<NO_RUNTIME_EXTERNALS_HASH>/g, '${{steps.sha_noruntime_noexternals.outputs.sha256}}')
+          trimmedPackages = trimmedPackages.replace(/<NO_RUNTIME_HASH>/g, '${{steps.sha_noruntime.outputs.sha256}}')
+          trimmedPackages = trimmedPackages.replace(/<NO_EXTERNALS_HASH>/g, '${{steps.sha_noexternals.outputs.sha256}}')
+
+          console.log(trimmedPackages)
+          fs.writeFileSync('${{ matrix.runtime }}-trimmedpackages.json', trimmedPackages)
+
+    # Upload runner package tar.gz/zip as artifact.
+    # Since each package name is unique, so we don't need to put ${{matrix}} info into artifact name
+    - name: Publish Artifact
+      if: github.event_name != 'pull_request'
+      uses: actions/upload-artifact@v2
+      with:
+        name: runner-packages
+        path: |
+          _package
+          _package_trims/trim_externals
+          _package_trims/trim_runtime
+          _package_trims/trim_runtime_externals
+          ${{ matrix.runtime }}-trimmedpackages.json
+
   release:
     needs: build
     runs-on: ubuntu-latest
@@ -150,9 +242,24 @@ jobs:
           releaseNote = releaseNote.replace(/<LINUX_X64_SHA>/g, '${{needs.build.outputs.linux-x64-sha}}')
           releaseNote = releaseNote.replace(/<LINUX_ARM_SHA>/g, '${{needs.build.outputs.linux-arm-sha}}')
           releaseNote = releaseNote.replace(/<LINUX_ARM64_SHA>/g, '${{needs.build.outputs.linux-arm64-sha}}')
+          releaseNote = releaseNote.replace(/<WIN_X64_SHA_NOEXTERNALS>/g, '${{needs.build.outputs.win-x64-sha-noexternals}}')
+          releaseNote = releaseNote.replace(/<OSX_X64_SHA_NOEXTERNALS>/g, '${{needs.build.outputs.osx-x64-sha-noexternals}}')
+          releaseNote = releaseNote.replace(/<LINUX_X64_SHA_NOEXTERNALS>/g, '${{needs.build.outputs.linux-x64-sha-noexternals}}')
+          releaseNote = releaseNote.replace(/<LINUX_ARM_SHA_NOEXTERNALS>/g, '${{needs.build.outputs.linux-arm-sha-noexternals}}')
+          releaseNote = releaseNote.replace(/<LINUX_ARM64_SHA_NOEXTERNALS>/g, '${{needs.build.outputs.linux-arm64-sha-noexternals}}')
+          releaseNote = releaseNote.replace(/<WIN_X64_SHA_NORUNTIME>/g, '${{needs.build.outputs.win-x64-sha-noruntime}}')
+          releaseNote = releaseNote.replace(/<OSX_X64_SHA_NORUNTIME>/g, '${{needs.build.outputs.osx-x64-sha-noruntime}}')
+          releaseNote = releaseNote.replace(/<LINUX_X64_SHA_NORUNTIME>/g, '${{needs.build.outputs.linux-x64-sha-noruntime}}')
+          releaseNote = releaseNote.replace(/<LINUX_ARM_SHA_NORUNTIME>/g, '${{needs.build.outputs.linux-arm-sha-noruntime}}')
+          releaseNote = releaseNote.replace(/<LINUX_ARM64_SHA_NORUNTIME>/g, '${{needs.build.outputs.linux-arm64-sha-noruntime}}')
+          releaseNote = releaseNote.replace(/<WIN_X64_SHA_NORUNTIME_NOEXTERNALS>/g, '${{needs.build.outputs.win-x64-sha-noruntime-noexternals}}')
+          releaseNote = releaseNote.replace(/<OSX_X64_SHA_NORUNTIME_NOEXTERNALS>/g, '${{needs.build.outputs.osx-x64-sha-noruntime-noexternals}}')
+          releaseNote = releaseNote.replace(/<LINUX_X64_SHA_NORUNTIME_NOEXTERNALS>/g, '${{needs.build.outputs.linux-x64-sha-noruntime-noexternals}}')
+          releaseNote = releaseNote.replace(/<LINUX_ARM_SHA_NORUNTIME_NOEXTERNALS>/g, '${{needs.build.outputs.linux-arm-sha-noruntime-noexternals}}')
+          releaseNote = releaseNote.replace(/<LINUX_ARM64_SHA_NORUNTIME_NOEXTERNALS>/g, '${{needs.build.outputs.linux-arm64-sha-noruntime-noexternals}}')
           console.log(releaseNote)
           core.setOutput('version', runnerVersion);
-          core.setOutput('note', releaseNote);  
+          core.setOutput('note', releaseNote);
     # Create GitHub release
     - uses: actions/create-release@master
       id: createRelease
@@ -164,16 +271,15 @@ jobs:
         release_name: "v${{ steps.releaseNote.outputs.version }}"
         body: |
           ${{ steps.releaseNote.outputs.note }}
-        prerelease: true
 
-    # Upload release assets
+    # Upload release assets (full runner packages)
     - name: Upload Release Asset (win-x64)
       uses: actions/upload-release-asset@v1.0.1
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
         upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}.zip
+        asset_path: ${{ github.workspace }}/_package/actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}.zip
         asset_name: actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}.zip
         asset_content_type: application/octet-stream
 
@@ -183,7 +289,7 @@ jobs:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
         upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}.tar.gz
+        asset_path: ${{ github.workspace }}/_package/actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}.tar.gz
         asset_name: actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}.tar.gz
         asset_content_type: application/octet-stream
 
@@ -193,7 +299,7 @@ jobs:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
         upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}.tar.gz
+        asset_path: ${{ github.workspace }}/_package/actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}.tar.gz
         asset_name: actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}.tar.gz
         asset_content_type: application/octet-stream
 
@@ -203,7 +309,7 @@ jobs:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
         upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}.tar.gz
+        asset_path: ${{ github.workspace }}/_package/actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}.tar.gz
         asset_name: actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}.tar.gz
         asset_content_type: application/octet-stream
 
@@ -213,6 +319,210 @@ jobs:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
         upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}.tar.gz
+        asset_path: ${{ github.workspace }}/_package/actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}.tar.gz
         asset_name: actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}.tar.gz
         asset_content_type: application/octet-stream
+
+    # Upload release assets (trim externals)
+    - name: Upload Release Asset (win-x64-noexternals)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_externals/actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-noexternals.zip
+        asset_name: actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-noexternals.zip
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (linux-x64-noexternals)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_externals/actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
+        asset_name: actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (osx-x64-noexternals)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_externals/actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
+        asset_name: actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (linux-arm-noexternals)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_externals/actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
+        asset_name: actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (linux-arm64-noexternals)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_externals/actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
+        asset_name: actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
+        asset_content_type: application/octet-stream
+
+    # Upload release assets (trim runtime)
+    - name: Upload Release Asset (win-x64-noruntime)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime/actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-noruntime.zip
+        asset_name: actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-noruntime.zip
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (linux-x64-noruntime)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime/actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
+        asset_name: actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (osx-x64-noruntime)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime/actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
+        asset_name: actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (linux-arm-noruntime)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime/actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
+        asset_name: actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (linux-arm64-noruntime)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime/actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
+        asset_name: actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
+        asset_content_type: application/octet-stream
+
+    # Upload release assets (trim runtime and externals)
+    - name: Upload Release Asset (win-x64-noruntime-noexternals)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime_externals/actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.zip
+        asset_name: actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.zip
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (linux-x64-noruntime-noexternals)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime_externals/actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
+        asset_name: actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (osx-x64-noruntime-noexternals)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime_externals/actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
+        asset_name: actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (linux-arm-noruntime-noexternals)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime_externals/actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
+        asset_name: actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (linux-arm64-noruntime-noexternals)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime_externals/actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
+        asset_name: actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
+        asset_content_type: application/octet-stream
+
+    # Upload release assets (trimmedpackages.json)
+    - name: Upload Release Asset (win-x64-trimmedpackages.json)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/win-x64-trimmedpackages.json
+        asset_name: actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-trimmedpackages.json
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (linux-x64-trimmedpackages.json)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/linux-x64-trimmedpackages.json
+        asset_name: actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-trimmedpackages.json
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (osx-x64-trimmedpackages.json)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/osx-x64-trimmedpackages.json
+        asset_name: actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-trimmedpackages.json
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (linux-arm-trimmedpackages.json)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/linux-arm-trimmedpackages.json
+        asset_name: actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-trimmedpackages.json
+        asset_content_type: application/octet-stream
+
+    - name: Upload Release Asset (linux-arm64-trimmedpackages.json)
+      uses: actions/upload-release-asset@v1.0.1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.createRelease.outputs.upload_url }}
+        asset_path: ${{ github.workspace }}/linux-arm64-trimmedpackages.json
+        asset_name: actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-trimmedpackages.json
+        asset_content_type: application/octet-stream

.github/workflows/runner-basic-e2e-test-case.yml

@@ -1,31 +0,0 @@
-name: Runner Basics Test Case
-
-on:
-  workflow_dispatch:
-    inputs: 
-      target_runner:
-        description: 'Self-hosted runner will run the job'
-        required: true
-
-jobs:
-  test:
-    runs-on:
-    - self-hosted
-    - ${{github.event.inputs.target_runner}}
-
-    name: Runner Basic Test 🛠
-    steps:
-    - uses: actions/checkout@v2
-    - name: Run a one-line script
-      run: echo Hello, world!
-    - name: Run a multi-line script
-      shell: bash
-      run: |
-        printenv|sort
-        cat $GITHUB_EVENT_PATH
-    - name: Validate GitHub Context
-      shell: bash
-      run: |
-        declare -a context_vars=("GITHUB_ACTION" "GITHUB_ACTIONS" "GITHUB_REPOSITORY" "GITHUB_WORKSPACE" "GITHUB_SHA" "GITHUB_RUN_ID" "GITHUB_RUN_NUMBER")
-        for var in ${context_vars[@]};
-        do [ -z "${!var}" ] && echo "##[error]$var not found" && exit 1 || echo "$var: ${!var}"; done

.gitignore

@@ -8,21 +8,22 @@
 **/*.xproj
 **/*.xproj.user
 **/.vs
-**/.vscode
 **/*.error
 **/*.json.pretty
 .idea/
+.vscode
+!.vscode/launch.json
+!.vscode/tasks.json
 
 # output
 node_modules
 _downloads
 _layout
+_layout_trims
 _package
+_package_trims
 _dotnetsdk
 TestResults
 TestLogs
 .DS_Store
-**/*.DotSettings.user
+**/*.DotSettings.user
-
-#generated
-src/Runner.Sdk/BuildConstants.cs

.vscode/launch.json

@@ -0,0 +1,57 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Run [build]",
+            "type": "coreclr",
+            "request": "launch",
+            "preLaunchTask": "build runner layout",
+            "program": "${workspaceFolder}/_layout/bin/Runner.Listener",
+            "args": [
+                "run"
+            ],
+            "cwd": "${workspaceFolder}/src",
+            "console": "integratedTerminal",
+            "requireExactSource": false,
+        },
+        {
+            "name": "Run",
+            "type": "coreclr",
+            "request": "launch",
+            "program": "${workspaceFolder}/_layout/bin/Runner.Listener",
+            "args": [
+                "run"
+            ],
+            "cwd": "${workspaceFolder}/src",
+            "console": "integratedTerminal",
+            "requireExactSource": false,
+        },
+        {
+            "name": "Configure",
+            "type": "coreclr",
+            "request": "launch",
+            "preLaunchTask": "create runner layout",
+            "program": "${workspaceFolder}/_layout/bin/Runner.Listener",
+            "args": [
+                "configure"
+            ],
+            "cwd": "${workspaceFolder}/src",
+            "console": "integratedTerminal",
+            "requireExactSource": false,
+        },
+        {
+            "name": "Debug Worker",
+            "type": "coreclr",
+            "request": "attach",
+            "processName": "Runner.Worker",
+            "requireExactSource": false,
+        },
+        {
+            "name": "Attach Debugger",
+            "type": "coreclr",
+            "request": "attach",
+            "processId": "${command:pickProcess}",
+            "requireExactSource": false,
+        },
+    ],
+}

.vscode/tasks.json

@@ -0,0 +1,33 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "create runner layout",
+            "detail": "Build and Copy all projects, scripts and external dependencies to _layout from src (run this the first time or after deleting _layout)",
+            "command": "./dev.sh",
+            "windows": {
+                "command": "dev.cmd"
+            },
+            "args": [
+                "layout"
+            ],
+            "options": {
+                "cwd": "${workspaceFolder}/src"
+            },
+        },
+        {
+            "label": "build runner layout",
+            "detail": "Build and Copy all projects to _layout from src (run this on code change)",
+            "command": "./dev.sh",
+            "windows": {
+                "command": "dev.cmd"
+            },
+            "args": [
+                "build"
+            ],
+            "options": {
+                "cwd": "${workspaceFolder}/src"
+            },
+        }
+    ],
+}

README.md

@@ -5,7 +5,7 @@
 # GitHub Actions Runner
 
 [![Actions Status](https://github.com/actions/runner/workflows/Runner%20CI/badge.svg)](https://github.com/actions/runner/actions)
-[![Runner E2E Test](https://github.com/actions/runner/workflows/Runner%20E2E%20Test/badge.svg)](https://github.com/actions/runner/actions)
+[![Runner E2E Test](https://github.com/actions-canary/actions-runner-e2e/actions/workflows/runner_e2etest.yml/badge.svg)](https://github.com/actions-canary/actions-runner-e2e/actions/workflows/runner_e2etest.yml)
 
 The runner is the application that runs a job from a GitHub Actions workflow. It is used by GitHub Actions in the [hosted virtual environments](https://github.com/actions/virtual-environments), or you can [self-host the runner](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/about-self-hosted-runners) in your own environment.
 

docs/adrs/0263-proxy-support.md

@@ -1,4 +1,4 @@
-# ADR 263: Self Hosted Runner Proxies
+# ADR 263: Self-Hosted Runner Proxies
 
 **Date**: 2019-11-13
 
@@ -6,13 +6,13 @@
 
 ## Context
 
-- Proxy support is required for some enterprises and organizations to start using their own self hosted runners
+- Proxy support is required for some enterprises and organizations to start using their own self-hosted runners
-- While there is not a standard convention, many applications support setting proxies via the environmental variables `http_proxy`, `https_proxy`, `no_proxy`, such as curl, wget, perl, python, docker, git, R, ect
+- While there is not a standard convention, many applications support setting proxies via the environment variables `http_proxy`, `https_proxy`, `no_proxy`, such as curl, wget, perl, python, docker, git, and R
   - Some of these applications use `HTTPS_PROXY` versus `https_proxy`, but most understand or primarily support the lowercase variant
 
 ## Decision
 
-We will update the Runner to use the conventional environment variables for proxies: `http_proxy`, `https_proxy` and `no_proxy` if they are set.
+We will update the Runner to use the conventional environment variables for proxies: `http_proxy`, `https_proxy`, and `no_proxy` if they are set.
 These are described in detail below:
 - `https_proxy` a proxy URL for all https traffic. It may contain basic authentication credentials. For example:
   - http://proxy.com
@@ -22,20 +22,20 @@ These are described in detail below:
   - http://proxy.com
   - http://127.0.0.1:8080
   - http://user:password@proxy.com
-- `no_proxy` a comma separated list of hosts that should not use the proxy. An optional port may be specified
+- `no_proxy` a comma-separated list of hosts that should not use the proxy. An optional port may be specified. For example:
   - `google.com`
   - `yahoo.com:443`
   - `google.com,bing.com`
 
 We won't use `http_proxy` for https traffic when `https_proxy` is not set, this behavior lines up with any libcurl based tools (curl, git) and wget.
-Otherwise action authors and workflow users need to adjust to differences between the runner proxy convention, and tools used by their actions and scripts.  
+Otherwise, action authors and workflow users need to adjust to differences between the runner proxy convention, and tools used by their actions and scripts.  
 
 Example:  
-  Customer set `http_proxy=http://127.0.0.1:8888` and configure the runner against `https://github.com/owner/repo`, with the `https_proxy` -> `http_proxy` fallback, the runner will connect to the server without any problem. However, if a user runs `git push` to `https://github.com/owner/repo`, `git` won't use the proxy since it requires `https_proxy` to be set for any https traffic.
+  Customer sets `http_proxy=http://127.0.0.1:8888` and configures the runner against `https://github.com/owner/repo`, with the `https_proxy` -> `http_proxy` fallback, the runner will connect to the server without any problem. However, if a user runs `git push` to `https://github.com/owner/repo`, `git` won't use the proxy since it requires `https_proxy` to be set for any https traffic.
 
-> `golang`, `node.js` and other dev tools from the linux community use `http_proxy` for both http and https traffic based on my research.
+> `golang`, `node.js`, and other dev tools from the Linux community use `http_proxy` for both http and https traffic based on my research.
 
-A majority of our users are using Linux where these variables are commonly required to be set by various programs. By reading these values, we simplify the process for self hosted runners to set up proxy, and expose it in a way users are already familiar with.
+A majority of our users are using Linux where these variables are commonly required to be set by various programs. By reading these values, we simplify the process for self-hosted runners to set up a proxy and expose it in a way users are already familiar with.
 
 A password provided for a proxy will be masked in the logs.
 
@@ -43,19 +43,19 @@ We will support the lowercase and uppercase variants, with lowercase taking prio
 
 ### No Proxy Format
 
-While exact implementations are different per application on handle `no_proxy` env, most applications accept a comma separated list of hosts. Some accept wildcard characters (*). We are going to do exact case-insensitive matches, and not support wildcards at this time.
+While exact implementations are different per application on handling `no_proxy` env, most applications accept a comma-separated list of hosts. Some accept wildcard characters (`*`). We are going to do exact case-insensitive matches, and not support wildcards at this time.
 For example:
-- example.com will match example.com, foo.example.com, foo.bar.example.com
+- `example.com` will match `example.com`, `foo.example.com`, and `foo.bar.example.com`
-- foo.example.com will match bar.foo.example.com and foo.example.com
+- `foo.example.com` will match `bar.foo.example.com` and `foo.example.com`
 
 We will not support IP addresses for `no_proxy`, only hostnames.
 
 ## Consequences
 
-1. Enterprises and organizations needing proxy support will be able to embrace self hosted runners
+1. Enterprises and organizations needing proxy support will be able to embrace self-hosted runners
-2. Users will need to set these environmental variables before configuring the runner in order to use a proxy when configuring
+2. Users will need to set these environment variables before configuring the runner in order to use a proxy when configuring
-3. The runner will read from the environmental variables during config and runtime and use the provided proxy if it exists
+3. The runner will read from the environment variables during config and runtime and use the provided proxy if it exists
-4. Users may need to pass these environmental variables into other applications if they do not natively take these variables
+4. Users may need to pass these environment variables into other applications if they do not natively take these variables
-5. Action authors may need to update their workflows to react to the these environment variables
+5. Action authors may need to update their workflows to react to these environment variables
-6. We will document the way of setting environmental variables for runners using the environment variables and how the runner uses them
+6. We will document the way of setting environment variables for runners using the environment variables and how the runner uses them
-7. Like all other secrets, users will be able to relatively easily figure out proxy password if they can modify a workflow file running on a self hosted machine
+7. Like all other secrets, users will be able to relatively easily figure out the proxy password if they can modify a workflow file running on a self-hosted machine

docs/adrs/0277-run-action-shell-options.md

@@ -8,7 +8,7 @@
 run-actions run scripts using a platform specific shell:
 `bash -eo pipefail` on non-windows, and `cmd.exe /c /d /s` on windows
 
-The `shell` option overwrites this to allow different flags or completely different shells/interpreters
+The `shell` option overrides this to allow different flags or completely different shells/interpreters
 
 A small example is:
 ```yml

docs/adrs/0279-hashFiles-expression-function.md

@@ -5,7 +5,7 @@
 **Status**: Accepted
 
 ## Context
-First party action `actions/cache` needs a input which is an explicit `key` used for restoring and saving the cache. For packages caching, the most comment `key` might be the hash result of contents from all `package-lock.json` under `node_modules` folder.
+First party action `actions/cache` needs a input which is an explicit `key` used for restoring and saving the cache. For packages caching, the most common `key` might be the hash result of contents from all `package-lock.json` under `node_modules` folder.
   
 There are serval different ways to get the hash `key` input for `actions/cache` action.
 
@@ -38,7 +38,7 @@ There are serval different ways to get the hash `key` input for `actions/cache`
 `hashFiles()` will only support hashing files under the `$GITHUB_WORKSPACE` since the expression evaluated on the runner, if customer use job container or container action, the runner won't have access to file system inside the container.
 
 `hashFiles()` will only take 1 parameters:
- - `hashFiles('**/package-lock.json')`  // Search files under $GITHUB_WORKSPACE and calculate a hash for them
+ - `hashFiles('**/package-lock.json')`  // Search files under `$GITHUB_WORKSPACE` and calculate a hash for them
 
 **Question: Do we need to support more than one match patterns?**  
 Ex: `hashFiles('**/package-lock.json', '!toolkit/core/package-lock.json', '!toolkit/io/package-lock.json')`  
@@ -52,7 +52,7 @@ This will help customer has better experience with the `actions/cache` action's
       key: ${{hashFiles('**/package-lock.json')}}-${{github.ref}}-${{runner.os}}
 ```
 
-For search pattern, we will use basic globbing (`*` `?` and `[]`) and globstar (`**`).
+For search pattern, we will use basic globbing (`*`, `?`, and `[]`) and globstar (`**`).
 
 Additional pattern details:
 - Root relative paths with `github.workspace` (the main repo)
@@ -68,4 +68,4 @@ Hashing logic:
 5. Use SHA256 to hash all stored files' hash results to get the final 64 chars hash result.
 
 **Question: Should we include the folder structure info into the hash?**  
-Answer: No
+Answer: No

docs/adrs/0361-wrapper-action.md

@@ -6,10 +6,10 @@
 
 ## Context
 
-In addition to action's regular execution, action author may wants their action has a chance to participate in:
+In addition to action's regular execution, action author may wants their action to have a chance to participate in:
-- Job initialize  
+- Job initialization
-  My Action will collect machine resource usage (CPU/RAM/Disk) during a workflow job execution, we need to start perf recorder at the begin of the job.
+  My Action will collect machine resource usage (CPU/RAM/Disk) during a workflow job execution, we need to start perf recorder at the beginning of the job.
-- Job cleanup  
+- Job cleanup
   My Action will dirty local workspace or machine environment during execution, we need to cleanup these changes at the end of the job.  
   Ex: `actions/checkout@v2` will write `github.token` into local `.git/config` during execution, it has post job cleanup defined to undo the changes.
 
@@ -46,12 +46,12 @@ Container Action Example:
    post-if: 'success()' // Optional
 ```
 
-Both `pre` and `post` will has default `pre-if/post-if` sets to `always()`.  
+Both `pre` and `post` will have default `pre-if/post-if` set to `always()`.  
 Setting `pre` to `always()` will make sure no matter what condition evaluate result the `main` gets at runtime, the `pre` has always run already.   
 `pre` executes in order of how the steps are defined.  
 `pre` will always be added to job steps list during job setup.  
-> Action referenced from local repository (`./my-action`) won't get `pre` setup correctly since the repository haven't checkout during job initialize.  
+> Action referenced from local repository (`./my-action`) won't get `pre` setup correctly since the repository haven't checked-out during job initialization.
-> We can't use GitHub api to download the repository since there is a about 3 mins delay between `git push` and the new commit available to download using GitHub api.
+> We can't use GitHub api to download the repository since there is about a 3 minute delay between `git push` and the new commit available to download using GitHub api.
 
 `post` will be pushed into a `poststeps` stack lazily when the action's `pre` or `main` execution passed `if` condition check and about to run, you can't have an action that only contains a `post`, we will pop and run each `post` after all `pre` and `main` finished.
 > Currently `post` works for both repository action (`org/repo@v1`) and local action (`./my-action`)
@@ -60,7 +60,7 @@ Valid action:
 - only has `main`
 - has `pre` and `main`
 - has `main` and `post`
-- has `pre`, `main` and `post`
+- has `pre`, `main`, and `post`
 
 Invalid action:
 - only has `pre`

docs/adrs/0397-runner-registration-labels.md

@@ -13,13 +13,13 @@ This is another version of [ADR275](https://github.com/actions/runner/pull/275)
 
 ## Decision
 
-This ADR proposes that we add a `--labels` option to `config`, which could be used to add custom additional labels to the configured runner.
+This ADR proposes that we add a `--labels` option to the `config`, which could be used to add custom additional labels to the configured runner.
 
-For example, to add a single extra label the operator could run:
+For example, to add a single additional label the operator could run:
 ```bash
 ./config.sh --labels mylabel
 ```
-> Note: the current runner command line parsing and envvar override algorithm only supports a single argument (key).
+> Note: the current runner command line parsing and envvar override algorithm only support a single argument (key).
 
 This would add the label `mylabel` to the runner, and enable users to select the runner in their workflow using this label:
 ```yaml
@@ -39,17 +39,17 @@ runs-on: [self-hosted, mylabel, anotherlabel]
 
 It would not be possible to remove labels from an existing runner using `config.sh`, instead labels would have to be removed using the GitHub UI.
 
-The labels argument will split on commas, trim and discard empty strings.  That effectively means don't use commans in unattended config label names.  Alternatively we could choose to escape commans but it's a nice to have.
+The labels argument will split on commas, trim and discard empty strings.  That effectively means don't use commas in unattended config label names.  Alternatively, we could choose to escape commas but it's a nice to have.
 
 ## Replace
 
-If an existing runner exists and the option to replace is chosen (interactively of via unattend as in this scenario), then the labels will be replaced / overwritten (not merged).
+If an existing runner exists and the option to replace is chosen (interactively or via unattended as in this scenario), then the labels will be replaced/overwritten (not merged).
 
 ## Overriding built-in labels
 
-Note that it is possible to register "built-in" hosted labels like `ubuntu-latest` and is not considered an error.  This is an effective way for the org / runner admin to dictate by policy through registration that this set of runners will be used without having to edit all the workflow files now and in the future.
+Note that it is possible to register "built-in" hosted labels like `ubuntu-latest` and is not considered an error.  This is an effective way for the org/runner admin to dictate by policy through registration that this set of runners will be used without having to edit all the workflow files now and in the future.
 
-We will also not make other restrictions such as limiting explicitly adding os / arch labels and validating.  We will assume that explicit labels were added for a reason and not restricting offers the most flexibility and future proofing / compat.
+We will also not make other restrictions such as limiting explicitly adding os/arch labels and validating.  We will assume that explicit labels were added for a reason and not restricting offers the most flexibility and future-proofing / compatibility.
 
 ## Consequences
 

docs/adrs/0549-composite-run-steps.md

@@ -8,17 +8,17 @@
 
 Customers want to be able to compose actions from actions (ex: https://github.com/actions/runner/issues/438)
 
-An important step towards meeting this goal is to build in functionality for actions where users can simply execute any number of steps. 
+An important step towards meeting this goal is to build functionality for actions where users can simply execute any number of steps. 
 
 ### Guiding Principles
 
-We don't want the workflow author to need to know how the internal workings of the action work. Users shouldn't know the internal workings of the composite action (for example, `default.shell` and `default.workingDir` should not be inherited from the workflow file to the action file). When deciding how to design certain parts of composite run steps, we want to think one logical step from the consumer.
+We don't want the workflow author to need to know how the internal workings of the action work. Users shouldn't know the internal workings of the composite action (for example, `default.shell` and `default.workingDir` should not be inherited from the workflow file to the action file). When deciding how to design certain parts of composite run steps, we want to treat it as one logical step for the consumer.
 
 A composite action is treated as **one** individual job step (this is known as encapsulation).
 
 ## Decision
 
-**In this ADR, we only support running multiple run steps in an Action.** In doing so, we build in support for mapping and flowing the inputs, outputs, and env variables (ex: All nested steps should have access to its parents' input variables and nested steps can overwrite the input variables).
+**In this ADR, we only support running multiple run steps in an Action.** In doing so, we build in support for mapping and flowing the inputs, outputs, and env variables (ex: All nested steps should have access to their parents' input variables and nested steps can overwrite the input variables).
 
 ### Composite Run Steps Features
 This feature supports at the top action level:
@@ -92,7 +92,7 @@ We will not support "defaults" in a composite action.
 
 ### Shell and Working-directory
 
-For each run step in a composite action, the action author can set the `shell` and `working-directory` attributes for that step. The shell attribute is **required** for each run step because the action author does not know what the workflow author is using for the operating system so we need to explicitly prevent unknown behavior by making sure that each run step has an explicit shell **set by the action author.** On the other hand, `working-directory` is optional. Moreover, the composite action author can map in values from the `inputs` for it's `shell` and `working-directory` attributes at the step level for an action. 
+For each run step in a composite action, the action author can set the `shell` and `working-directory` attributes for that step. The shell attribute is **required** for each run step because the action author does not know what the workflow author is using for the operating system so we need to explicitly prevent unknown behavior by making sure that each run step has an explicit shell **set by the action author.** On the other hand, `working-directory` is optional. Moreover, the composite action author can map in values from the `inputs` for its `shell` and `working-directory` attributes at the step level for an action. 
 
 For example,
 
@@ -218,9 +218,9 @@ Example Output:
 random-number 43243
 ```
 
-Each of the output variables from the composite action is viewable from the workflow file that uses the composite action. In other words, every child action output(s) is viewable only by its parent using dot notation (ex `steps.foo.outputs.random-number`).
+Each of the output variables from the composite action is viewable from the workflow file that uses the composite action. In other words, every child's action output(s) are only viewable by its parent using dot notation (ex `steps.foo.outputs.random-number`).
 
-Moreover, the output ids are only accessible within the scope where it was defined. Note that in the example above, in our `workflow.yml` file, it should not have access to output id (i.e. `random-id`). The reason why we are doing this is because we don't want to require the workflow author to know the internal workings of the composite action.
+Moreover, the output ids are only accessible within the scope where it was defined. Note that in the example above, in our `workflow.yml` file, it should not have access to output id (i.e. `random-id`). The reason why we are doing this is that we don't want to require the workflow author to know the internal workings of the composite action.
 
 ### Context
 
@@ -237,9 +237,9 @@ In the Composite Action, you'll only be able to use `::set-env::` to set environ
 We'll pass the secrets from the composite action's parents (ex: the workflow file) to the composite action. Secrets can be created in the composite action with the secrets context. In the actions yaml, we'll automatically mask the secret. 
 
 
-### If Condition
+### If-Condition
 
-** If and needs conditions will not be supported in the composite run steps feature. It will be supported later on in a new feature. **
+** `If` and `needs` conditions will not be supported in the composite run steps feature. It will be supported later on in a new feature. **
 
 Old reasoning:
 
@@ -248,7 +248,7 @@ Example `workflow.yml`:
 ```yaml
 steps:
   - run: exit 1
-  - uses: user/composite@v1  # <--- this will run, as it's marked as always runing
+  - uses: user/composite@v1  # <--- this will run, as it's marked as always running
     if: always()
 ```
 
@@ -269,15 +269,15 @@ runs:
       shell: bash
 ```
 
-**We will not support "if Condition" in a composite action for now. This functionality will be focused on in a future ADR.**
+**We will not support "if-condition" in a composite action for now. This functionality will be focused on in a future ADR.**
 
 See the paragraph below for a rudimentary approach (thank you to @cybojenix for the idea, example, and explanation for this approach):
 
 The `if` statement in the parent (in the example above, this is the `workflow.yml`) shows whether or not we should run the composite action. So, our composite action will run since the `if` condition for running the composite action is `always()`.
 
-**Note that the if condition on the parent does not propagate to the rest of its children though.**
+**Note that the "if-condition" on the parent does not propagate to the rest of its children though.**
 
-In the child action (in this example, this is the `action.yml`), it starts with a clean slate (in other words, no imposing if conditions). Similar to the logic in the paragraph above, `echo "I will run, as my current scope is succeeding"` will run since the `if` condition checks if the previous steps **within this composite action** has not failed. `run: echo "I will not run, as my current scope is now failing"` will not run since the previous step resulted in an error and by default, the if expression is set to `success()` if the if condition is not set for a step.
+In the child action (in this example, this is the `action.yml`), it starts with a clean slate (in other words, no imposing if-conditions). Similar to the logic in the paragraph above, `echo "I will run, as my current scope is succeeding"` will run since the `if` condition checks if the previous steps **within this composite action** have not failed. `run: echo "I will not run, as my current scope is now failing"` will not run since the previous step resulted in an error and by default, the if expression is set to `success()` if the if-condition is not set for a step.
 
 
 What if a step has `cancelled()`? We do the opposite of our approach above if `cancelled()` is used for any of our composite run steps. We will cancel any step that has this condition if the workflow is cancelled at all.
@@ -314,13 +314,13 @@ runs:
 
 **We will not support "timeout-minutes" in a composite action for now. This functionality will be focused on in a future ADR.**
 
-A composite action in its entirety is a job. You can set both timeout-minutes for the whole composite action or its steps as long as the the sum of the `timeout-minutes` for each composite action step that has the attribute `timeout-minutes` is less than or equals to `timeout-minutes` for the composite action. There is no default timeout-minutes for each composite action step. 
+A composite action in its entirety is a job. You can set both timeout-minutes for the whole composite action or its steps as long as the sum of the `timeout-minutes` for each composite action step that has the attribute `timeout-minutes` is less than or equals to `timeout-minutes` for the composite action. There is no default timeout-minutes for each composite action step. 
 
-If the time taken for any of the steps in combination or individually exceed the whole composite action `timeout-minutes` attribute, the whole job will fail (1). If an individual step exceeds its own `timeout-minutes` attribute but the total time that has been used including this step is below the overall composite action `timeout-minutes`, the individual step will fail but the rest of the steps will run based on their own `timeout-minutes` attribute (they will still abide by condition (1) though).
+If the time taken for any of the steps in combination or individually exceeds the whole composite action `timeout-minutes` attribute, the whole job will fail (1). If an individual step exceeds its own `timeout-minutes` attribute but the total time that has been used including this step is below the overall composite action `timeout-minutes`, the individual step will fail but the rest of the steps will run based on their own `timeout-minutes` attribute (they will still abide by condition (1) though).
 
-For reference, in the example above, if the composite step `foo1` takes 11 minutes to run, that step will fail but the rest of the steps, `foo1` and `foo2`, will proceed as long as their total runtime with the previous failed `foo1` action is less than the composite action's `timeout-minutes` (50 minutes). If the composite step `foo2` takes 51 minutes to run, it will cause the whole composite action job to fail. I
+For reference, in the example above, if the composite step `foo1` takes 11 minutes to run, that step will fail but the rest of the steps, `foo1` and `foo2`, will proceed as long as their total runtime with the previous failed `foo1` action is less than the composite action's `timeout-minutes` (50 minutes). If the composite step `foo2` takes 51 minutes to run, it will cause the whole composite action job to fail.
 
-The rationale behind this is that users can configure their steps with the `if` condition to conditionally set how steps rely on each other. Due to the additional capabilities that are offered with combining `timeout-minutes` and/or `if`, we wanted the `timeout-minutes` condition to be as dumb as possible and not effect other steps. 
+The rationale behind this is that users can configure their steps with the `if` condition to conditionally set how steps rely on each other. Due to the additional capabilities that are offered with combining `timeout-minutes` and/or `if`, we wanted the `timeout-minutes` condition to be as dumb as possible and not affect other steps. 
 
 [Usage limits still apply](https://help.github.com/en/actions/reference/workflow-syntax-for-github-actions?query=if%28%29#usage-limits)
 
@@ -361,7 +361,7 @@ For the composite action steps, it follows the same logic as above. In this exam
 ### Visualizing Composite Action in the GitHub Actions UI
 We want all the composite action's steps to be condensed into the original composite action node. 
 
-Here is a visual represenation of the [first example](#Steps)
+Here is a visual representation of the [first example](#Steps)
 
 ```yaml
 | composite_action_node |

docs/adrs/1144-composite-actions.md

@@ -0,0 +1,92 @@
+**Date**: 2021-06-10
+
+**Status**: Accepted
+
+## Context
+
+We released [composite run steps](https://github.com/actions/runner/pull/554) last year which started our journey of reusing steps across different workflow files. To continue that journey, we want to expand composite run steps into composite actions.
+
+We want to support the `uses` steps from workflows in composite actions, including:
+  - Container actions
+  - Javascript actions
+  - Other Composite actions (up to a limit of course!)
+  - The pre and post steps these actions can generate
+
+## Guiding Principles
+
+- Composite Actions should function as a single step or action, no matter how many steps it is composed of or how many levels of recursion it has
+  - In the future we may add a configurable option to make this no longer the case
+- A workflow author should not need to understand the inner workings of a composite action in order to use it
+- Composite actions should leverage inputs to get values they need, they will not have full access to the `context` objects. The secrets context will **not** be available to composite actions, users will need to pass these values in as an input.
+- Other Actions should **just work** inside a composite action, without any code changes
+
+## Decisions
+
+### Composite Recursion Limit
+
+- We will start with supporting a recursion limit of `10` composite actions deep
+- We are free to bump this limit in the future, the code will be written to just require updating a variable. If the graph evaluates beyond the recursion limit, the job will fail in the pre-job phase (The `Set up job` step).
+- A composite actions interface is its inputs and outputs, nothing else is carried over when invoking recursively.
+
+### Pre/Post Steps in nested Actions
+
+- We do not plan on adding the ability to configure a customizable pre or post step for composite actions at this time. However, we will execute the pre and post steps of any actions referenced in a composite action.
+- Composite actions will generate a single pre-step and post-step for the entire composite action, even if there are multiple pre-steps and post-steps in the referenced actions.
+  - These steps will execute following the same ordering rules we have today, first to run has their pre step run first and their post step run last.
+  - For example, if you had a composite action with two pre steps and two posts steps:
+
+  ```
+  - uses: action1
+  - uses: composite1
+  - uses: action2
+  ```
+
+  The order of execution would be:
+
+  ```
+  - prestep-action1
+  - prestep-composite1
+    - prestep-composite1-first-action-referenced
+    - prestep-composite1-second-action-referenced
+  - prestep-action2
+  - the job steps
+  - poststep-action2
+  - poststep-composite1
+    - poststep-composite1-the-second-action-referenced
+    - poststep-composite1-first-action-referenced
+  - poststep-action1
+  ```
+
+#### Set-state
+
+- While the composite action has an individual combined pre/post action, the `set-state` command will not be shared.
+- If the `set-state` command is used during a composite step, only the action that originally called `set-state` will have access to the env variable during the post run step.
+  - This prevents multiple actions that set the same state from interfering with the execution of another action's post step.
+
+### Resolve Action Endpoint changes
+
+- The resolve actions endpoint will now validate policy to ensure that the given workflow run has access to download that action.
+  - Older GHES/GHAE customers with newer runners will be locked out of composite uses steps until they upgrade their instance.
+
+### Local actions
+- Local actions will expand the tree, perform policy checks, and download actions Just in Time when the step is running.
+- Like current local actions, we will not support presteps. If an action is running local, by the time we know that, the time to run presteps have already passed.
+
+### If, continue-on-error, timeout-minutes - Not being considered at this time
+
+- `if`, `continue-on-error`, `timeout-minutes` could be supported in composite run/uses steps. These values were not originally supported in our composite run steps implementation.
+  - Browsing the community forums and runner repo, there hasn't been a lot of noise asking for these features, so we will hold off on them.
+- These values passed as input into the composite action will **not** be carried over as input into the individual steps the composite action runs.
+
+### Defaults - Not being considered at this time
+
+- In actions, we have the idea of [defaults](https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#defaultsrun) , which allow you to specify a shell and working directory in one location, rather then on each step.
+- However, `shell` is currently required in composite run steps
+  - In regular run steps, it is optional, and defaults to a different value based on the OS.
+- We want to prioritize the right experience for the consumer, and make the action author continue to explicitly set these values. We can consider improving this experience in the future.
+
+## Consequences
+
+- Workflows are now more reusable across multiple workflow files
+- Composite actions implement most of the existing workflow run steps, with room to expand these in the future
+- Feature flags will control this rollout

docs/adrs/1438-conditional-composite.md

@@ -0,0 +1,71 @@
+# ADR 1438: Support Conditionals In Composite Actions
+
+**Date**: 2021-10-13
+
+**Status**: Accepted
+
+## Context
+
+We recently shipped composite actions, which allows you to reuse individual steps inside an action. 
+However, one of the [most requested features](https://github.com/actions/runner/issues/834) has been a way to support the `if` keyword.
+
+### Goals
+- We want to keep consistent with current behavior
+- We want to support conditionals via the `if` keyword
+- Our built in functions like `success` should be implementable without calling them, for example you can do `job.status == success` rather then `success()` currently.
+
+### How does composite currently work?
+
+Currently, we have limited conditional support in composite actions for `pre` and `post` steps. 
+These are based on the `job status`, and support keywords like `always()`, `failed()`, `success()` and `cancelled()`. 
+However, generic or main steps do **not** support conditionals.
+
+By default, in a regular workflow, a step runs on the `success()` condition. Which looks at the **job** **status**, sees if it is successful and runs.
+
+By default, in a composite action, main steps run until a single step fails in that composite action, then the composite action is halted early. It does **not** care about the job status.
+Pre, and post steps in composite actions use the job status to determine if they should run.
+
+### How do we go forward?
+
+Well, if we think about what composite actions are currently doing when invoking main steps, they are checking if the current composite action is successful. 
+Lets formalize that concept into a "real" idea.
+
+- We will add an `action_status` field to the github context to mimic the [job's context status](https://docs.github.com/en/actions/learn-github-actions/contexts#job-context).
+  - We have an existing concept that does this `action_path` which is only set for composite actions on the github context.
+- In a composite action during a main step, the `success()` function will check if `action_status == success`, rather then `job_status == success`. Failure will work the same way. 
+  - Pre and post steps in composite actions will not change, they will continue to check the job status.
+
+
+### Nested Scenario
+For nested composite actions, we will follow the existing behavior, you only care about your current composite action, not any parents. 
+For example, lets imagine a scenario with a simple nested composite action
+
+```
+- Job
+  - Regular Step
+  - Composite Action
+    - runs: exit 1
+    - if: always()
+      uses: A child composite action
+        - if: success()
+          runs: echo "this should print"
+        - runs: echo "this should also print"
+    - if: success()
+      runs: echo "this will not print as the current composite action has failed already"
+      
+```
+The child composite actions steps should run in this example, the child composite action has not yet failed, so it should run all steps until a step fails. This is consistent with how a composite action currently works in production if the main job fails but a composite action is invoked with `if:always()` or `if: failure()`
+
+### Other options explored
+We could add the `current_step_status` to the job context rather then `__status` to the steps context, however this comes with two major downsides:
+- We need to support the field for every type of step, because its non trivial to remove a field from the job context once it has been added (its readonly)
+  - For all actions besides composite it would only every be `success`
+  - Its weird to have a `current_step` value on the job context
+- We also explored a `__status` on the steps context.
+  - The `__` is required to prevent us from colliding with a step with id: status
+  - This felt wrong because the naming was not smooth, and did not fit into current conventions.
+
+### Consequences
+- github context has a new field for the status of the current composite action.
+- We support conditional's in composite actions
+- We keep the existing behavior for all users, but allow them to expand that functionality.

docs/automate.md

@@ -11,7 +11,7 @@ export RUNNER_CFG_PAT=yourPAT
 
 ## Create running as a service
 
-**Scenario**: Run on a machine or VM (not container) which automates:
+**Scenario**: Run on a machine or VM ([not container](#why-cant-i-use-a-container)) which automates:
 
  - Resolving latest released runner
  - Download and extract latest
@@ -21,14 +21,35 @@ export RUNNER_CFG_PAT=yourPAT
 
 :point_right: [Sample script here](../scripts/create-latest-svc.sh) :point_left:
 
-Run as a one-liner. NOTE: replace with yourorg/yourrepo (repo level) or just yourorg (org level) 
+Run as a one-liner. NOTE: replace with yourorg/yourrepo (repo level) or just yourorg (org level)
 ```bash
-curl -s https://raw.githubusercontent.com/actions/runner/automate/scripts/create-latest-svc.sh | bash -s yourorg/yourrepo
+curl -s https://raw.githubusercontent.com/actions/runner/main/scripts/create-latest-svc.sh | bash -s yourorg/yourrepo
 ```
 
-## Uninstall running as service 
+You can call the script with additional arguments:
+```bash
+#   Usage:
+#       export RUNNER_CFG_PAT=<yourPAT>
+#       ./create-latest-svc -s scope -g [ghe_domain] -n [name] -u [user] -l [labels]
+#       -s          required  scope: repo (:owner/:repo) or org (:organization)
+#       -g          optional  ghe_hostname: the fully qualified domain name of your GitHub Enterprise Server deployment
+#       -n          optional  name of the runner, defaults to hostname
+#       -u          optional  user svc will run as, defaults to current
+#       -l          optional  list of labels (split by comma) applied on the runner"
+```
 
-**Scenario**: Run on a machine or VM (not container) which automates:
+Use `--` to pass any number of optional named parameters:
+
+```
+curl -s https://raw.githubusercontent.com/actions/runner/main/scripts/create-latest-svc.sh | bash -s -- -s myorg/myrepo -n myname -l label1,label2
+```
+### Why can't I use a container?
+
+The runner is installed as a service using `systemd` and `systemctl`. Docker does not support `systemd` for service configuration on a container.
+
+## Uninstall running as service
+
+**Scenario**: Run on a machine or VM ([not container](#why-cant-i-use-a-container)) which automates:
 
  - Stops and uninstalls the systemd (linux) or Launchd (osx) service
  - Acquires a removal token
@@ -36,9 +57,9 @@ curl -s https://raw.githubusercontent.com/actions/runner/automate/scripts/create
 
 :point_right: [Sample script here](../scripts/remove-svc.sh) :point_left:
 
-Repo level one liner.  NOTE: replace with yourorg/yourrepo (repo level) or just yourorg (org level) 
+Repo level one liner.  NOTE: replace with yourorg/yourrepo (repo level) or just yourorg (org level)
 ```bash
-curl -s https://raw.githubusercontent.com/actions/runner/automate/scripts/remove-svc.sh | bash -s yourorg/yourrepo
+curl -s https://raw.githubusercontent.com/actions/runner/main/scripts/remove-svc.sh | bash -s yourorg/yourrepo
 ```
 
 ### Delete an offline runner
@@ -53,5 +74,5 @@ curl -s https://raw.githubusercontent.com/actions/runner/automate/scripts/remove
 
 Repo level one-liner.  NOTE: replace with yourorg/yourrepo (repo level) or just yourorg (org level) and replace runnername
 ```bash
-curl -s https://raw.githubusercontent.com/actions/runner/automate/scripts/delete.sh | bash -s yourorg/yourrepo runnername
+curl -s https://raw.githubusercontent.com/actions/runner/main/scripts/delete.sh | bash -s yourorg/yourrepo runnername
 ```

docs/checks/actions.md

@@ -18,16 +18,16 @@ Make sure the runner has access to actions service for GitHub.com or GitHub Ente
 
 - DNS lookup for api.github.com or myGHES.com using dotnet
 - Ping api.github.com or myGHES.com using dotnet
-- Make HTTP GET to https://api.github.com or https://myGHES.com/api/v3 using dotnet, check response headers contains `X-GitHub-Request-Id` 
+- Make HTTP GET to https://api.github.com or https://myGHES.com/api/v3 using dotnet, check response headers contains `X-GitHub-Request-Id`
 ---
 - DNS lookup for vstoken.actions.githubusercontent.com using dotnet
 - Ping vstoken.actions.githubusercontent.com using dotnet
-- Make HTTP GET to https://vstoken.actions.githubusercontent.com/_apis/health or https://myGHES.com/_services/vstoken/_apis/health using dotnet, check response headers contains `x-vss-e2eid` 
+- Make HTTP GET to https://vstoken.actions.githubusercontent.com/_apis/health or https://myGHES.com/_services/vstoken/_apis/health using dotnet, check response headers contains `x-vss-e2eid`
 ---
 - DNS lookup for pipelines.actions.githubusercontent.com using dotnet
 - Ping pipelines.actions.githubusercontent.com using dotnet
-- Make HTTP GET to https://pipelines.actions.githubusercontent.com/_apis/health or https://myGHES.com/_services/pipelines/_apis/health using dotnet, check response headers contains `x-vss-e2eid` 
+- Make HTTP GET to https://pipelines.actions.githubusercontent.com/_apis/health or https://myGHES.com/_services/pipelines/_apis/health using dotnet, check response headers contains `x-vss-e2eid`
-- Make HTTP POST to https://pipelines.actions.githubusercontent.com/_apis/health or https://myGHES.com/_services/pipelines/_apis/health using dotnet, check response headers contains `x-vss-e2eid` 
+- Make HTTP POST to https://pipelines.actions.githubusercontent.com/_apis/health or https://myGHES.com/_services/pipelines/_apis/health using dotnet, check response headers contains `x-vss-e2eid`
 
 ## How to fix the issue?
 
@@ -42,4 +42,4 @@ Make sure the runner has access to actions service for GitHub.com or GitHub Ente
   
 ## Still not working?
 
-Contact GitHub customer service or log an issue at https://github.com/actions/runner if you think it's a runner issue.
+Contact GitHub customer service or log an issue at https://github.com/actions/runner if you think it's a runner issue.

docs/checks/git.md

@@ -31,4 +31,4 @@ The test also set environment variable `GIT_TRACE=1` and `GIT_CURL_VERBOSE=1` be
   
 ## Still not working?
 
-Contact GitHub customer service or log an issue at https://github.com/actions/runner if you think it's a runner issue.
+Contact GitHub customer service or log an issue at https://github.com/actions/runner if you think it's a runner issue.

docs/checks/internet.md

@@ -13,7 +13,7 @@ Even the runner is configured to GitHub Enterprise Server, the runner can still
 
 - DNS lookup for api.github.com using dotnet
 - Ping api.github.com using dotnet
-- Make HTTP GET to https://api.github.com using dotnet, check response headers contains `X-GitHub-Request-Id` 
+- Make HTTP GET to https://api.github.com using dotnet, check response headers contains `X-GitHub-Request-Id`
 
 ## How to fix the issue?
 
@@ -23,4 +23,4 @@ Even the runner is configured to GitHub Enterprise Server, the runner can still
 
 ## Still not working?
 
-Contact GitHub customer service or log an issue at https://github.com/actions/runner if you think it's a runner issue.
+Contact GitHub customer service or log an issue at https://github.com/actions/runner if you think it's a runner issue.

docs/checks/network.md

@@ -2,17 +2,19 @@
 
 ### Common things that can cause the runner to not working properly
 
-- Bug in the runner or the dotnet framework that causes actions runner can't make Http request in a certain network environment.
+- A bug in the runner or the dotnet framework that causes the actions runner to be unable to make Http requests in a certain network environment.
 
-- Proxy/Firewall block certain HTTP method, like it block all POST and PUT calls which the runner will use to upload logs.
+- A Proxy or Firewall may block certain HTTP method, such as blocking all POST and PUT calls which the runner will use to upload logs.
 
-- Proxy/Firewall only allows requests with certain user-agent to pass through and the actions runner user-agent is not in the allow list.
+- A Proxy or Firewall may only allows requests with certain user-agent to pass through and the actions runner user-agent is not in the allow list.
 
-- Proxy try to decrypt and exam HTTPS traffic for security purpose but cause the actions-runner to fail to finish SSL handshake due to the lack of trusting proxy's CA.
+- A Proxy try to decrypt and exam HTTPS traffic for security purpose but cause the actions-runner to fail to finish SSL handshake due to the lack of trusting proxy's CA.
 
-- Proxy try to modify the HTTPS request (like add or change some http headers) and causes the request become incompatible with the Actions Service (ASP.NetCore), Ex: [Nginx](https://github.com/dotnet/aspnetcore/issues/17081)
+- The SSL handshake may fail if the client and server do not support the same TLS version, or the same cipher suites.
 
-- Firewall rules that block action runner from accessing certain hosts, ex: `*.github.com`, `*.actions.githubusercontent.com`, etc.
+- A Proxy may try to modify the HTTPS request (like add or change some http headers) and causes the request become incompatible with the Actions Service (ASP.NetCore), Ex: [Nginx](https://github.com/dotnet/aspnetcore/issues/17081)
+
+- Firewall rules that block action runner from accessing certain hosts, ex: `*.github.com`, `*.actions.githubusercontent.com`, etc
 
 
 ### Identify and solve these problems
@@ -23,10 +25,38 @@ Use a 3rd party tool to make the same requests as the runner did would be a good
 
 - Use `nslookup` to check DNS
 - Use `ping` to check Ping
-- Use `traceroute`, `tracepath`, or `tracert` to check the network route between the runner and the Actions service 
+- Use `traceroute`, `tracepath`, or `tracert` to check the network route between the runner and the Actions service
 - Use `curl -v` to check the network stack, good for verifying default certificate/proxy settings.
 - Use `Invoke-WebRequest` from `pwsh` (`PowerShell Core`) to check the dotnet network stack, good for verifying bugs in the dotnet framework.
 
 If the 3rd party tool is also experiencing the same error as the runner does, then you might want to contact your network administrator for help.
 
-Otherwise, contact GitHub customer support or log an issue at https://github.com/actions/runner
+Otherwise, contact GitHub customer support or log an issue at https://github.com/actions/runner
+
+### Troubleshooting: Why can't I configure a runner?
+
+If you are having trouble connecting, try these steps:
+
+1. Validate you can reach our endpoints from your web browser. If not, double check your local network connection
+    - For hosted Github:
+      - https://api.github.com/
+      - https://vstoken.actions.githubusercontent.com/_apis/health
+      - https://pipelines.actions.githubusercontent.com/_apis/health
+    - For GHES/GHAE
+      - https://myGHES.com/_services/vstoken/_apis/health
+      - https://myGHES.com/_services/pipelines/_apis/health
+      - https://myGHES.com/api/v3
+2. Validate you can reach those endpoints in powershell core
+    - The runner runs on .net core, lets validate the local settings for that stack
+    - Open up `pwsh`
+    - Run the command using the urls above `Invoke-WebRequest {url}`
+3. If not, get a packet trace using a tool like wireshark and start looking at the TLS handshake.
+    - If you see a Client Hello followed by a Server RST:
+      - You may need to configure your TLS settings to use the correct version
+        - You should support TLS version 1.2 or later
+      - You may need to configure your TLS settings to have up to date cipher suites, this may be solved by system updates and patches.
+        - Most notably, on windows server 2012 make sure [the tls cipher suite update](https://support.microsoft.com/en-us/topic/update-adds-new-tls-cipher-suites-and-changes-cipher-suite-priorities-in-windows-8-1-and-windows-server-2012-r2-8e395e43-c8ef-27d8-b60c-0fc57d526d94) is installed
+      - Your firewall, proxy or network configuration may be blocking the connection
+      - You will want to reach out to whoever is in charge of your network with these pcap files to further troubleshoot
+    - If you see a failure later in the handshake:
+      - Try the fix in the [SSLCert Fix](./sslcert.md)

docs/checks/nodejs.md

@@ -27,4 +27,4 @@ All javascript base Actions will get executed by the built-in `node` at `<runner
   
 ## Still not working?
 
-Contact GitHub customer service or log an issue at https://github.com/actions/runner if you think it's a runner issue.
+Contact GitHub customer service or log an issue at https://github.com/actions/runner if you think it's a runner issue.

docs/checks/sslcert.md

@@ -12,7 +12,7 @@ As long as your certificate is generated properly, most of the issues should be
 > !!! DO NOT SKIP SSL CERT VALIDATION !!!  
 > !!! IT IS A BAD SECURITY PRACTICE !!!  
 
-### Download SSL certificate chain 
+### Download SSL certificate chain
 
 Depends on how your SSL server certificate gets configured, you might need to download the whole certificate chain from a machine that has trusted the SSL certificate's CA.
 
@@ -28,7 +28,7 @@ The actions runner is a dotnet core application which will follow how dotnet loa
 
 You can get full details documentation at [here](https://docs.microsoft.com/en-us/dotnet/standard/security/cross-platform-cryptography#x509store)
 
-In short: 
+In short:
 - Windows: Load from Windows certificate store.
 - Linux: Load from OpenSSL CA cert bundle.
 - macOS: Load from macOS KeyChain.
@@ -43,13 +43,13 @@ To let the runner trusts your CA certificate, you will need to:
       1. RedHat: https://www.redhat.com/sysadmin/ca-certificates-cli
       2. Ubuntu: http://manpages.ubuntu.com/manpages/focal/man8/update-ca-certificates.8.html
       3. Google search: "trust ca certificate on [linux distribution]"
-      4. If all approaches failed, set environment variable `SSL_CERT_FILE` to the CA bundle `.pem` file we get. 
+      4. If all approaches failed, set environment variable `SSL_CERT_FILE` to the CA bundle `.pem` file we get.
-    > To verity cert gets installed properly on Linux, you can try use `curl -v https://sitewithsslissue.com` and `pwsh -Command \"Invoke-WebRequest -Uri https://sitewithsslissue.com\"`
+    > To verify cert gets installed properly on Linux, you can try use `curl -v https://sitewithsslissue.com` and `pwsh -Command \"Invoke-WebRequest -Uri https://sitewithsslissue.com\"`
 
 ### Trust CA certificate for Git CLI
 
 Git uses various CA bundle file depends on your operation system.
-- Git packaged the CA bundle file within the Git installation on Windows 
+- Git packaged the CA bundle file within the Git installation on Windows
 - Git use OpenSSL certificate CA bundle file on Linux and macOS
 
 You can check where Git check CA file by running:

docs/contribute.md

@@ -12,20 +12,43 @@ Issues in this repository should be for the runner application.  Note that the V
 
 ## Enhancements and Feature Requests
 
-We ask that before significant effort is put into code changes, that we have agreement on taking the change before time is invested in code changes. 
+We ask that before significant effort is put into code changes, that we have agreement on taking the change before time is invested in code changes.
 
 1. Create a feature request.  Once agreed we will take the enhancement
 2. Create an ADR to agree on the details of the change.
 
 An ADR is an Architectural Decision Record.  This allows consensus on the direction forward and also serves as a record of the change and motivation.  [Read more here](adrs/README.md)
 
-## Development Life Cycle
+## Required Dev Dependencies
-
-### Required Dev Dependencies
 
 ![Win](res/win_sm.png) ![*nix](res/linux_sm.png)  Git for Windows and Linux [Install Here](https://git-scm.com/downloads) (needed for dev sh script)
 
-### To Build, Test, Layout 
+## Quickstart: Run a job from a real repository
+
+If you just want to get from building the sourcecode to using it to execute an action, you will need:
+
+- The url of your repository
+- A runner registration token. You can find it at `https://github.com/{your-repo}/settings/actions/runners/new`
+
+
+```bash
+git clone https://github.com/actions/runner
+cd runner/src
+./dev.(sh/cmd) layout # the runner that built from source is in {root}/_layout
+cd ../_layout
+./config.(sh/cmd) --url https://github.com/{your-repo} --token ABCABCABCABCABCABCABCABCABCAB # accept default name, labels and work folder
+./run.(sh/cmd)
+```
+
+If you trigger a job now, you can see the runner execute it.
+
+Tip: Make sure your job can run on this runner. The easiest way is to set `runs-on: self-hosted` in the workflow file.
+
+
+## Development Life Cycle
+If you're using VS Code, you can follow [these](contribute/vscode.md) steps instead.
+
+### To Build, Test, Layout
 
 Navigate to the `src` directory and run the following command:
 
@@ -39,7 +62,7 @@ Navigate to the `src` directory and run the following command:
 * `build` (`b`):   Build everything and update runner layout folder
 * `test` (`t`):    Build runner binaries and run unit tests
 
-Sample developer flow:
+### Sample developer flow:
 
 ```bash
 git clone https://github.com/actions/runner
@@ -51,25 +74,81 @@ cd ./src
 ./dev.(sh/cmd) test # run all unit tests before git commit/push
 ```
 
-View logs:
+Let's break that down.
+
+### Clone repository:
+
+```bash
+git clone https://github.com/actions/runner
+cd runner
+```
+If you want to push your changes to a remote, it is recommended you fork the repository and use that fork as your origin instead of `https://github.com/actions/runner`.
+
+
+### Build Layout:
+
+This command will build all projects, then copies them and other dependencies into a folder called `_layout`. The binaries in this folder are then used for running, debugging the runner.
+
+```bash
+cd ./src # execute the script from this folder
+./dev.(sh/cmd) layout # the runner that built from source is in {root}/_layout
+```
+
+If you make code changes after this point, use the argument `build` to build your code in the `src` folder to keep your `_layout` folder up to date.
+
+```bash
+cd ./src
+./dev.(sh/cmd) build # {root}/_layout will get updated
+```
+### Test Layout:
+
+This command runs the suite of unit tests in the project
+
+```bash
+cd ./src
+./dev.(sh/cmd) test # run all unit tests before git commit/push
+```
+
+### Configure Runner:
+
+If you want to manually test your runner and run actions from a real repository, you'll have to configure it before running it.
+
+```bash
+cd runner/_layout
+./config.(sh/cmd) # configure your custom runner
+```
+
+You will need your the name of your repository and a runner registration token.
+Check [Quickstart](##Quickstart:-Run-a-job-from-a-real-repository) if you don't know how to get this token.
+
+These can also be passed down as arguments to `config.(sh/cmd)`:
+```bash
+cd runner/_layout
+./config.(sh/cmd) --url https://github.com/{your-repo} --token ABCABCABCABCABCABCABCABCABCAB
+```
+
+### Run Runner
+
+All that's left to do is to start the runner:
+```bash
+cd runner/_layout
+./run.(sh/cmd) # run your custom runner
+```
+
+### View logs:
+
 ```bash
 cd runner/_layout/_diag
 ls
 cat (Runner/Worker)_TIMESTAMP.log # view your log file
 ```
 
-Run Runner:
+## Editors
-```bash
-cd runner/_layout
-./run.sh # run your custom runner
-```
-
-### Editors
 
 [Using Visual Studio Code](https://code.visualstudio.com/)
 [Using Visual Studio](https://code.visualstudio.com/docs)  
 
-### Styling
+## Styling
 
 We use the .NET Foundation and CoreCLR style guidelines [located here](
 https://github.com/dotnet/corefx/blob/master/Documentation/coding-guidelines/coding-style.md)

docs/contribute/vscode.md

@@ -0,0 +1,52 @@
+# Development Life Cycle using VS Code:
+
+These examples use VS Code, but the idea should be similar across all IDEs as long as you attach to the same processes in the right folder.
+## Configure
+
+To successfully start the runner, you need to register it using a repository and a runner registration token.
+Run `Configure` first to build the source code and set up the runner in `_layout`.
+Once it's done creating `_layout`, it asks for the url of your repository and your token in the terminal.
+
+Check [Quickstart](../contribute.md#quickstart-run-a-job-from-a-real-repository) if you don't know how to get this token.
+
+## Debugging
+
+Debugging the full lifecycle of a job can be tricky, because there are multiple processes involved.
+All the configs below can be found in `.vscode/launch.json`.
+
+## Debug the Listener
+
+```json
+{
+    "name": "Run [build]",
+    "type": "coreclr",
+    "request": "launch",
+    "preLaunchTask": "build runner layout",  // use the config called "Run" to launch without rebuild
+    "program": "${workspaceFolder}/_layout/bin/Runner.Listener",
+    "args": [
+        "run" // run without args to print usage
+    ],
+    "cwd": "${workspaceFolder}/src",
+    "console": "integratedTerminal",
+    "requireExactSource": false,
+}
+```
+
+If you launch `Run` or `Run [build]`, it starts a process called `Runner.Listener`.
+This process will receive any job queued on this repository if the job runs on matching labels (e.g `runs-on: self-hosted`).
+Once a job is received, a `Runner.Listener` starts a new process of `Runner.Worker`.
+Since this is a diferent process, you can't use the same debugger session debug it.
+Instead, a parallel debugging session has to be started, using a different launch config.
+Luckily, VS Code supports multiple parallel debugging sessions.
+
+## Debug the Worker
+
+Because the worker process is usually started by the listener instead of an IDE, debugging it from start to finish can be tricky.
+For this reason, `Runner.Worker` can be configured to wait for a debugger to be attached before it begins any actual work.
+
+Set the environment variable `GITHUB_ACTIONS_RUNNER_ATTACH_DEBUGGER` to `true` or `1` to enable this wait.
+All worker processes now will wait 20 seconds before they start working on their task.
+
+This gives enough time to attach a debugger by running `Debug Worker`.
+If for some reason you have multiple workers running, run the launch config `Attach` instead.
+Select `Runner.Worker` from the running processes when VS Code prompts for it.

docs/design/auth.md

@@ -58,4 +58,4 @@ Authentication in a workflow run to github.com can be accomplished by using the
 
 Hosted runner authentication differs from self-hosted authentication in that runners do not undergo a registration process, but instead, the hosted runners get the OAuth token directly by reading the `.credentials` file. The scope of this particular token is limited for a given workflow job execution, and the token is revoked as soon as the job is finished.
 
-![Hosted runner config and start](../res/hosted-config-start.png)
+![Hosted runner config and start](../res/hosted-config-start.png)

docs/start/envlinux.md

@@ -23,11 +23,11 @@ You might see something like this which indicate a dependency's missing.
 ./config.sh
     libunwind.so.8 => not found
     libunwind-x86_64.so.8 => not found
-Dependencies is missing for Dotnet Core 3.0
+Dependencies is missing for Dotnet Core 6.0
-Execute ./bin/installdependencies.sh to install any missing Dotnet Core 3.0 dependencies.
+Execute ./bin/installdependencies.sh to install any missing Dotnet Core 6.0 dependencies.
 ```
 You can easily correct the problem by executing `./bin/installdependencies.sh`.  
-The `installdependencies.sh` script should install all required dependencies on all supported Linux versions   
+The `installdependencies.sh` script should install all required dependencies on all supported Linux versions  
 > Note: The `installdependencies.sh` script will try to use the default package management mechanism on your Linux flavor (ex. `yum`/`apt-get`/`apt`).
 
 ### Full dependencies list
@@ -35,15 +35,15 @@ The `installdependencies.sh` script should install all required dependencies on
 Debian based OS (Debian, Ubuntu, Linux Mint)
 
 - liblttng-ust0
-- libkrb5-3 
+- libkrb5-3
 - zlib1g
 - libssl1.1, libssl1.0.2 or libssl1.0.0
 - libicu63, libicu60, libicu57 or libicu55
 
 Fedora based OS (Fedora, Red Hat Enterprise Linux, CentOS, Oracle Linux 7)
 
-- lttng-ust 
+- lttng-ust
-- openssl-libs 
+- openssl-libs
 - krb5-libs
 - zlib
 - libicu

docs/start/envosx.md

@@ -6,5 +6,11 @@
 
   - macOS High Sierra (10.13) and later versions
 
+## Apple Silicon M1
+
+The runner is currently not supported on devices with an Apple M1 chip.  
+We are waiting for official .NET support. You can read more here about the [current state of support here](https://github.com/orgs/dotnet/projects/18#card-56812463).
+Current .NET project board about M1 support:
+https://github.com/orgs/dotnet/projects/18#card-56812463
 
 ## [More .Net Core Prerequisites Information](https://docs.microsoft.com/en-us/dotnet/core/macos-prerequisites?tabs=netcore30)

releaseNote.md

@@ -1,16 +1,22 @@
 ## Features
-  - Verify the Runner Hash during auto-upgrade before installing the new runner version (#967)
+
-  - Support download of runners from authenticated endpoints (#920)
+- Bump runtime to dotnet 6 (#1471)
-  - Enabled tty output in Docker Actions (#916)
+- Show service container logs on teardown (#1563)
-  - Added '--check' command to verify runner connectivity (#949)
 
 ## Bugs
-  - Fix usage of /dev/null and ping in run.sh (#968)
+
+- Add masks for multiline secrets from ::add-mask:: (#1521)
+- fix Log size and retention settings not work (#1507)
+- Refactor SelfUpdater adding L0 tests. (#1564)
+- Fix test failure: /bin/sleep on Macos 11 (Monterey) does not accept the suffix s. (#1472)
+
 
 ## Misc
-  - Updated the copy for various runner messages (#972)
+
-  - Added the runner's OS to telemetry (#939)
+- Update dependency check for dotnet 6. (#1551)
-  - Various other telemetry improvements (#935)
+- Produce trimmed down runner packages. (#1556)
+- Deleted extra background in github-praph.png, which is displayed in README.md (#1432)
+
 
 ## Windows x64
 We recommend configuring the runner in a root folder of the Windows drive (e.g. "C:\actions-runner"). This will help avoid issues related to service identity folder permissions and long file path restrictions on Windows.
@@ -22,7 +28,7 @@ mkdir \actions-runner ; cd \actions-runner
 # Download the latest runner package
 Invoke-WebRequest -Uri https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>/actions-runner-win-x64-<RUNNER_VERSION>.zip -OutFile actions-runner-win-x64-<RUNNER_VERSION>.zip
 # Extract the installer
-Add-Type -AssemblyName System.IO.Compression.FileSystem ; 
+Add-Type -AssemblyName System.IO.Compression.FileSystem ;
 [System.IO.Compression.ZipFile]::ExtractToDirectory("$PWD\actions-runner-win-x64-<RUNNER_VERSION>.zip", "$PWD")
 ```
 
@@ -48,7 +54,7 @@ curl -O -L https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>
 tar xzf ./actions-runner-linux-x64-<RUNNER_VERSION>.tar.gz
 ```
 
-## Linux arm64 (Pre-release)
+## Linux arm64
 
 ``` bash
 # Create a folder
@@ -59,7 +65,7 @@ curl -O -L https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>
 tar xzf ./actions-runner-linux-arm64-<RUNNER_VERSION>.tar.gz
 ```
 
-## Linux arm (Pre-release)
+## Linux arm
 
 ``` bash
 # Create a folder
@@ -82,3 +88,21 @@ The SHA-256 checksums for the packages included in this build are shown below:
 - actions-runner-linux-x64-<RUNNER_VERSION>.tar.gz <!-- BEGIN SHA linux-x64 --><LINUX_X64_SHA><!-- END SHA linux-x64 -->
 - actions-runner-linux-arm64-<RUNNER_VERSION>.tar.gz <!-- BEGIN SHA linux-arm64 --><LINUX_ARM64_SHA><!-- END SHA linux-arm64 -->
 - actions-runner-linux-arm-<RUNNER_VERSION>.tar.gz <!-- BEGIN SHA linux-arm --><LINUX_ARM_SHA><!-- END SHA linux-arm -->
+
+- actions-runner-win-x64-<RUNNER_VERSION>-noexternals.zip <!-- BEGIN SHA win-x64_noexternals --><WIN_X64_SHA_NOEXTERNALS><!-- END SHA win-x64_noexternals -->
+- actions-runner-osx-x64-<RUNNER_VERSION>-noexternals.tar.gz <!-- BEGIN SHA osx-x64_noexternals --><OSX_X64_SHA_NOEXTERNALS><!-- END SHA osx-x64_noexternals -->
+- actions-runner-linux-x64-<RUNNER_VERSION>-noexternals.tar.gz <!-- BEGIN SHA linux-x64_noexternals --><LINUX_X64_SHA_NOEXTERNALS><!-- END SHA linux-x64_noexternals -->
+- actions-runner-linux-arm64-<RUNNER_VERSION>-noexternals.tar.gz <!-- BEGIN SHA linux-arm64_noexternals --><LINUX_ARM64_SHA_NOEXTERNALS><!-- END SHA linux-arm64_noexternals -->
+- actions-runner-linux-arm-<RUNNER_VERSION>-noexternals.tar.gz <!-- BEGIN SHA linux-arm_noexternals --><LINUX_ARM_SHA_NOEXTERNALS><!-- END SHA linux-arm_noexternals -->
+
+- actions-runner-win-x64-<RUNNER_VERSION>-noruntime.zip <!-- BEGIN SHA win-x64_noruntime --><WIN_X64_SHA_NORUNTIME><!-- END SHA win-x64_noruntime -->
+- actions-runner-osx-x64-<RUNNER_VERSION>-noruntime.tar.gz <!-- BEGIN SHA osx-x64_noruntime --><OSX_X64_SHA_NORUNTIME><!-- END SHA osx-x64_noruntime -->
+- actions-runner-linux-x64-<RUNNER_VERSION>-noruntime.tar.gz <!-- BEGIN SHA linux-x64_noruntime --><LINUX_X64_SHA_NORUNTIME><!-- END SHA linux-x64_noruntime -->
+- actions-runner-linux-arm64-<RUNNER_VERSION>-noruntime.tar.gz <!-- BEGIN SHA linux-arm64_noruntime --><LINUX_ARM64_SHA_NORUNTIME><!-- END SHA linux-arm64_noruntime -->
+- actions-runner-linux-arm-<RUNNER_VERSION>-noruntime.tar.gz <!-- BEGIN SHA linux-arm_noruntime --><LINUX_ARM_SHA_NORUNTIME><!-- END SHA linux-arm_noruntime -->
+
+- actions-runner-win-x64-<RUNNER_VERSION>-noruntime-noexternals.zip <!-- BEGIN SHA win-x64_noruntime_noexternals --><WIN_X64_SHA_NORUNTIME_NOEXTERNALS><!-- END SHA win-x64_noruntime_noexternals -->
+- actions-runner-osx-x64-<RUNNER_VERSION>-noruntime-noexternals.tar.gz <!-- BEGIN SHA osx-x64_noruntime_noexternals --><OSX_X64_SHA_NORUNTIME_NOEXTERNALS><!-- END SHA osx-x64_noruntime_noexternals -->
+- actions-runner-linux-x64-<RUNNER_VERSION>-noruntime-noexternals.tar.gz <!-- BEGIN SHA linux-x64_noruntime_noexternals --><LINUX_X64_SHA_NORUNTIME_NOEXTERNALS><!-- END SHA linux-x64_noruntime_noexternals -->
+- actions-runner-linux-arm64-<RUNNER_VERSION>-noruntime-noexternals.tar.gz <!-- BEGIN SHA linux-arm64_noruntime_noexternals --><LINUX_ARM64_SHA_NORUNTIME_NOEXTERNALS><!-- END SHA linux-arm64_noruntime_noexternals -->
+- actions-runner-linux-arm-<RUNNER_VERSION>-noruntime-noexternals.tar.gz <!-- BEGIN SHA linux-arm_noruntime_noexternals --><LINUX_ARM_SHA_NORUNTIME_NOEXTERNALS><!-- END SHA linux-arm_noruntime_noexternals -->

releaseVersion

@@ -1 +1 @@
-<Update to ./src/runnerversion when creating release>
+2.286.0

scripts/README.md

@@ -1,4 +1,4 @@
 # Sample scripts for self-hosted runners
 
 Here are some examples to work from if you'd like to automate your use of self-hosted runners.
-See the docs [here](../docs/automate.md).
+See the docs [here](../docs/automate.md).

scripts/create-latest-svc.sh

@@ -2,36 +2,68 @@
 
 set -e
 
-#
-# Downloads latest releases (not pre-release) runner
-# Configures as a service
-#
-# Examples:
-# RUNNER_CFG_PAT=<yourPAT> ./create-latest-svc.sh myuser/myrepo my.ghe.deployment.net
-# RUNNER_CFG_PAT=<yourPAT> ./create-latest-svc.sh myorg my.ghe.deployment.net
-#
-# Usage:
-#     export RUNNER_CFG_PAT=<yourPAT>
-#     ./create-latest-svc scope [ghe_domain] [name] [user] [labels]
-#
-#      scope       required  repo (:owner/:repo) or org (:organization)
-#      ghe_domain  optional  the fully qualified domain name of your GitHub Enterprise Server deployment
-#      name        optional  defaults to hostname
-#      user        optional  user svc will run as. defaults to current
-#      labels      optional  list of labels (split by comma) applied on the runner
-#
 # Notes:
 # PATS over envvars are more secure
+# Downloads latest runner release (not pre-release)
+# Configures it as a service more secure
 # Should be used on VMs and not containers
 # Works on OSX and Linux
 # Assumes x64 arch
-#
+# See EXAMPLES below
 
-runner_scope=${1}
+flags_found=false
-ghe_hostname=${2}
+
-runner_name=${3:-$(hostname)}
+while getopts 's:g:n:u:l:' opt; do
-svc_user=${4:-$USER}
+    flags_found=true
-labels=${5}
+
+    case $opt in
+    s)
+        runner_scope=$OPTARG
+        ;;
+    g)
+        ghe_hostname=$OPTARG
+        ;;
+    n)
+        runner_name=$OPTARG
+        ;;
+    u)
+        svc_user=$OPTARG
+        ;;
+    l)
+        labels=$OPTARG
+        ;;
+    *)
+        echo "
+Runner Service Installer
+Examples:
+RUNNER_CFG_PAT=<yourPAT> ./create-latest-svc.sh myuser/myrepo my.ghe.deployment.net
+RUNNER_CFG_PAT=<yourPAT> ./create-latest-svc.sh -s myorg -u user_name -l label1,label2
+Usage:
+    export RUNNER_CFG_PAT=<yourPAT>
+    ./create-latest-svc scope [ghe_domain] [name] [user] [labels]
+    -s          required  scope: repo (:owner/:repo) or org (:organization)
+    -g          optional  ghe_hostname: the fully qualified domain name of your GitHub Enterprise Server deployment
+    -n          optional  name of the runner, defaults to hostname
+    -u          optional  user svc will run as, defaults to current
+    -l          optional  list of labels (split by comma) applied on the runner"
+        exit 0
+        ;;
+    esac
+done
+
+shift "$((OPTIND - 1))"
+
+if ! "$flags_found"; then
+    runner_scope=${1}
+    ghe_hostname=${2}
+    runner_name=${3:-$(hostname)}
+    svc_user=${4:-$USER}
+    labels=${5}
+fi
+
+# apply defaults
+runner_name=${runner_name:-$(hostname)}
+svc_user=${svc_user:-$USER}
 
 echo "Configuring runner @ ${runner_scope}"
 sudo echo
@@ -142,7 +174,7 @@ echo
 echo "Configuring as a service ..."
 prefix=""
 if [ "${runner_plat}" == "linux" ]; then
-prefix="sudo "
+    prefix="sudo "
 fi
 
 ${prefix}./svc.sh install ${svc_user}

scripts/delete.sh

@@ -51,7 +51,7 @@ fi
 # Ensure offline
 #--------------------------------------
 runner_status=$(curl -s -X GET ${base_api_url}/${runner_scope}/actions/runners?per_page=100  -H "accept: application/vnd.github.everest-preview+json" -H "authorization: token ${RUNNER_CFG_PAT}" \
-        | jq -M -j ".runners | .[] | [select(.name == \"${runner_name}\")] | .[0].status")
+        | jq -M -j ".runners | .[] | select(.name == \"${runner_name}\") | .status")
 
 if [ -z "${runner_status}" ]; then 
     fatal "Could not find runner with name ${runner_name}"
@@ -67,7 +67,7 @@ fi
 # Get id of runner to remove
 #--------------------------------------
 runner_id=$(curl -s -X GET ${base_api_url}/${runner_scope}/actions/runners?per_page=100  -H "accept: application/vnd.github.everest-preview+json" -H "authorization: token ${RUNNER_CFG_PAT}" \
-        | jq -M -j ".runners | .[] | [select(.name == \"${runner_name}\")] | .[0].id")
+        | jq -M -j ".runners | .[] | select(.name == \"${runner_name}\") | .id")
 
 if [ -z "${runner_id}" ]; then 
     fatal "Could not find runner with name ${runner_name}"

scripts/remove-svc.sh

@@ -73,4 +73,4 @@ if [ "${runner_plat}" == "linux" ]; then
 fi 
 ${prefix}./svc.sh stop
 ${prefix}./svc.sh uninstall
-${prefix}./config.sh remove --token $REMOVE_TOKEN
+./config.sh remove --token $REMOVE_TOKEN

src/Misc/contentHash/dotnetRuntime/linux-arm

@@ -0,0 +1 @@
+de62d296708908cfd1236e58869aebbc2bae8a8c3d629276968542626c508e37

src/Misc/contentHash/dotnetRuntime/linux-arm64

@@ -0,0 +1 @@
+44fcd0422dd98ed17d2c8e9057ff2260c50165f20674236a4ae7d2645a07df25

src/Misc/contentHash/dotnetRuntime/linux-x64

@@ -0,0 +1 @@
+e57652cf322ee16ce3af4f9e58f80858746b9e1e60279e991a3b3d9a6baf8d79

src/Misc/contentHash/dotnetRuntime/osx-x64

@@ -0,0 +1 @@
+bdd247b2ff3f51095524412e2ac588e7a87af805e114d6caf2368366ee7be1ea

src/Misc/contentHash/dotnetRuntime/win-x64

@@ -0,0 +1 @@
+d23a0cb9f20c0aa1cddb7a39567cd097020cdeb06a1e952940601d1a405c53b8

src/Misc/contentHash/externals/linux-arm

@@ -0,0 +1 @@
+6ca4a0e1c50b7079ead05321dcf5835c1c25f23dc632add8c1c4667d416d103e

src/Misc/contentHash/externals/linux-arm64

@@ -0,0 +1 @@
+b5951dc607d782d9c7571a7224e940eb0975bb23c54ff25c7afdbf959a417081

src/Misc/contentHash/externals/linux-x64

@@ -0,0 +1 @@
+af819e92011cc9cbca90e8299f9f7651f2cf6bf45b42920f9a4ca22795486147

src/Misc/contentHash/externals/osx-x64

@@ -0,0 +1 @@
+aa0e6bf4bfaabf48c962ea3b262dca042629ab332005f73d282faec908847036

src/Misc/contentHash/externals/win-x64

@@ -0,0 +1 @@
+40328cff2b8229f9b578f32739183bd8f6aab481c21dadc052b09f1c7e8e4665

src/Misc/dotnet-install.ps1

@@ -340,9 +340,8 @@ function Get-Latest-Version-Info([string]$AzureFeed, [string]$Channel) {
     elseif ($Runtime -eq "aspnetcore") {
         $VersionFileUrl = "$UncachedFeed/aspnetcore/Runtime/$Channel/latest.version"
     }
-    # Currently, the WindowsDesktop runtime is manufactured with the .Net core runtime
     elseif ($Runtime -eq "windowsdesktop") {
-        $VersionFileUrl = "$UncachedFeed/Runtime/$Channel/latest.version"
+        $VersionFileUrl = "$UncachedFeed/WindowsDesktop/$Channel/latest.version"
     }
     elseif (-not $Runtime) {
         $VersionFileUrl = "$UncachedFeed/Sdk/$Channel/latest.version"
@@ -438,7 +437,16 @@ function Get-Download-Link([string]$AzureFeed, [string]$SpecificVersion, [string
         $PayloadURL = "$AzureFeed/aspnetcore/Runtime/$SpecificVersion/aspnetcore-runtime-$SpecificProductVersion-win-$CLIArchitecture.zip"
     }
     elseif ($Runtime -eq "windowsdesktop") {
+        # The windows desktop runtime is part of the core runtime layout prior to 5.0
         $PayloadURL = "$AzureFeed/Runtime/$SpecificVersion/windowsdesktop-runtime-$SpecificProductVersion-win-$CLIArchitecture.zip"
+        if ($SpecificVersion -match '^(\d+)\.(.*)$')
+        {
+            $majorVersion = [int]$Matches[1]
+            if ($majorVersion -ge 5)
+            {
+                $PayloadURL = "$AzureFeed/WindowsDesktop/$SpecificVersion/windowsdesktop-runtime-$SpecificProductVersion-win-$CLIArchitecture.zip"
+            }
+        }
     }
     elseif (-not $Runtime) {
         $PayloadURL = "$AzureFeed/Sdk/$SpecificVersion/dotnet-sdk-$SpecificProductVersion-win-$CLIArchitecture.zip"
@@ -480,7 +488,16 @@ function Get-Product-Version([string]$AzureFeed, [string]$SpecificVersion) {
         $ProductVersionTxtURL = "$AzureFeed/aspnetcore/Runtime/$SpecificVersion/productVersion.txt"
     }
     elseif ($Runtime -eq "windowsdesktop") {
+        # The windows desktop runtime is part of the core runtime layout prior to 5.0
         $ProductVersionTxtURL = "$AzureFeed/Runtime/$SpecificVersion/productVersion.txt"
+        if ($SpecificVersion -match '^(\d+)\.(.*)')
+        {
+            $majorVersion = [int]$Matches[1]
+            if ($majorVersion -ge 5)
+            {
+                $ProductVersionTxtURL = "$AzureFeed/WindowsDesktop/$SpecificVersion/productVersion.txt"
+            }
+        }
     }
     elseif (-not $Runtime) {
         $ProductVersionTxtURL = "$AzureFeed/Sdk/$SpecificVersion/productVersion.txt"
@@ -885,10 +902,10 @@ Say "Note that the script does not resolve dependencies during installation."
 Say "To check the list of dependencies, go to https://docs.microsoft.com/dotnet/core/install/windows#dependencies"
 Say "Installation finished"
 # SIG # Begin signature block
-# MIIjkgYJKoZIhvcNAQcCoIIjgzCCI38CAQExDzANBglghkgBZQMEAgEFADB5Bgor
+# MIIjjwYJKoZIhvcNAQcCoIIjgDCCI3wCAQExDzANBglghkgBZQMEAgEFADB5Bgor
 # BgEEAYI3AgEEoGswaTA0BgorBgEEAYI3AgEeMCYCAwEAAAQQH8w7YFlLCE63JNLG
-# KX7zUQIBAAIBAAIBAAIBAAIBADAxMA0GCWCGSAFlAwQCAQUABCD2c707qnCLOLIC
+# KX7zUQIBAAIBAAIBAAIBAAIBADAxMA0GCWCGSAFlAwQCAQUABCCNsnhcJvx/hXmM
-# n6Mu5Gr4+Xp68foyZlGlTycnycc5l6CCDYEwggX/MIID56ADAgECAhMzAAABh3IX
+# w8KjuvvIMDBFonhg9XJFc1QwfTyH4aCCDYEwggX/MIID56ADAgECAhMzAAABh3IX
 # chVZQMcJAAAAAAGHMA0GCSqGSIb3DQEBCwUAMH4xCzAJBgNVBAYTAlVTMRMwEQYD
 # VQQIEwpXYXNoaW5ndG9uMRAwDgYDVQQHEwdSZWRtb25kMR4wHAYDVQQKExVNaWNy
 # b3NvZnQgQ29ycG9yYXRpb24xKDAmBgNVBAMTH01pY3Jvc29mdCBDb2RlIFNpZ25p
@@ -960,29 +977,29 @@ Say "Installation finished"
 # xw4o7t5lL+yX9qFcltgA1qFGvVnzl6UJS0gQmYAf0AApxbGbpT9Fdx41xtKiop96
 # eiL6SJUfq/tHI4D1nvi/a7dLl+LrdXga7Oo3mXkYS//WsyNodeav+vyL6wuA6mk7
 # r/ww7QRMjt/fdW1jkT3RnVZOT7+AVyKheBEyIXrvQQqxP/uozKRdwaGIm1dxVk5I
-# RcBCyZt2WwqASGv9eZ/BvW1taslScxMNelDNMYIVZzCCFWMCAQEwgZUwfjELMAkG
+# RcBCyZt2WwqASGv9eZ/BvW1taslScxMNelDNMYIVZDCCFWACAQEwgZUwfjELMAkG
 # A1UEBhMCVVMxEzARBgNVBAgTCldhc2hpbmd0b24xEDAOBgNVBAcTB1JlZG1vbmQx
 # HjAcBgNVBAoTFU1pY3Jvc29mdCBDb3Jwb3JhdGlvbjEoMCYGA1UEAxMfTWljcm9z
 # b2Z0IENvZGUgU2lnbmluZyBQQ0EgMjAxMQITMwAAAYdyF3IVWUDHCQAAAAABhzAN
 # BglghkgBZQMEAgEFAKCBrjAZBgkqhkiG9w0BCQMxDAYKKwYBBAGCNwIBBDAcBgor
-# BgEEAYI3AgELMQ4wDAYKKwYBBAGCNwIBFTAvBgkqhkiG9w0BCQQxIgQgE/MRhWyu
+# BgEEAYI3AgELMQ4wDAYKKwYBBAGCNwIBFTAvBgkqhkiG9w0BCQQxIgQgpT/bxWwe
-# Zg+EA2WKcxYC31nHVCTE6guHppZppc70RtkwQgYKKwYBBAGCNwIBDDE0MDKgFIAS
+# aW0EinKMWCAzDXUjwXkIHldYzR6lw4/1Pc0wQgYKKwYBBAGCNwIBDDE0MDKgFIAS
 # AE0AaQBjAHIAbwBzAG8AZgB0oRqAGGh0dHA6Ly93d3cubWljcm9zb2Z0LmNvbTAN
-# BgkqhkiG9w0BAQEFAASCAQBvcYCjRDXUYEIz9j2j0r4GFI2Y3g/CoNxDDBaeQ+gV
+# BgkqhkiG9w0BAQEFAASCAQCHd7sSQVq0YDg8QDx6/kLWn3s6jtvvIDCCgsO9spHM
-# khO0fK0oLh18RbV271Mg6SF7X7+mXB5MnL68voVQDqHnsCYrIAuMF/AEpv9YuDDp
+# quPd4FPbG67DCsKDClekQs52qrtRO3Zo+JMnCw4j3bS+gZHzeJr2shbftOrpsFoD
-# ZRJuqN7Vwg3HM02l/FyATBIMgf/V79aYzJL3jjtt9bRIyxk6aPU4XcwMeA4usnUQ
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 # Y3Jvc29mdCBPcGVyYXRpb25zIFB1ZXJ0byBSaWNvMSYwJAYDVQQLEx1UaGFsZXMg
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-# U3RhbXAgU2VydmljZaCCDkQwggT1MIID3aADAgECAhMzAAABLCKvRZd1+RvuAAAA
+# U3RhbXAgU2VydmljZaCCDkEwggT1MIID3aADAgECAhMzAAABLCKvRZd1+RvuAAAA
 # AAEsMA0GCSqGSIb3DQEBCwUAMHwxCzAJBgNVBAYTAlVTMRMwEQYDVQQIEwpXYXNo
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 # cG9yYXRpb24xJjAkBgNVBAMTHU1pY3Jvc29mdCBUaW1lLVN0YW1wIFBDQSAyMDEw
@@ -1043,7 +1060,7 @@ Say "Installation finished"
 # cs0d9LiFAR6A+xuJKlQ5slvayA1VmXqHczsI5pgt6o3gMy4SKfXAL1QnIffIrE7a
 # KLixqduWsqdCosnPGUFN4Ib5KpqjEWYw07t0MkvfY3v1mYovG8chr1m1rtxEPJdQ
 # cdeh0sVV42neV8HR3jDA/czmTfsNv11P6Z0eGTgvvM9YBS7vDaBQNdrvCScc1bN+
-# NR4Iuto229Nfj950iEkSoYIC0jCCAjsCAQEwgfyhgdSkgdEwgc4xCzAJBgNVBAYT
+# NR4Iuto229Nfj950iEkSoYICzzCCAjgCAQEwgfyhgdSkgdEwgc4xCzAJBgNVBAYT
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 # cGVyYXRpb25zIFB1ZXJ0byBSaWNvMSYwJAYDVQQLEx1UaGFsZXMgVFNTIEVTTjo4
@@ -1052,27 +1069,27 @@ Say "Installation finished"
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+# ARdwT8jigpsm+mj7lrVU9upDkhVYhKeO8oiZq95Q53Zkteo=
 # SIG # End signature block

src/Misc/dotnet-install.sh

@@ -303,7 +303,7 @@ get_machine_architecture() {
             echo "arm"
             return 0
             ;;
-        aarch64)
+        aarch64|arm64)
             echo "arm64"
             return 0
             ;;
@@ -489,7 +489,7 @@ get_specific_version_from_version() {
     local json_file="$5"
 
     if [ -z "$json_file" ]; then
-        if [[ "$version" == "latest" ]]; then 
+        if [[ "$version" == "latest" ]]; then
             local version_info
             version_info="$(get_latest_version_info "$azure_feed" "$channel" "$normalized_architecture" false)" || return 1
             say_verbose "get_specific_version_from_version: version_info=$version_info"
@@ -522,7 +522,7 @@ construct_download_link() {
     local specific_version="${4//[$'\t\r\n']}"
     local specific_product_version="$(get_specific_product_version "$1" "$4")"
     local osname="$5"
-    
+
     local download_link=null
     if [[ "$runtime" == "dotnet" ]]; then
         download_link="$azure_feed/Runtime/$specific_version/dotnet-runtime-$specific_product_version-$osname-$normalized_architecture.tar.gz"
@@ -542,7 +542,7 @@ construct_download_link() {
 # azure_feed - $1
 # specific_version - $2
 get_specific_product_version() {
-    # If we find a 'productVersion.txt' at the root of any folder, we'll use its contents 
+    # If we find a 'productVersion.txt' at the root of any folder, we'll use its contents
     # to resolve the version of what's in the folder, superseding the specified version.
     eval $invocation
 
@@ -744,13 +744,30 @@ download() {
     fi
 
     local failed=false
-    if machine_has "curl"; then
+    local attempts=0
-        downloadcurl "$remote_path" "$out_path" || failed=true
+    while [ $attempts -lt 3 ]; do
-    elif machine_has "wget"; then
+        attempts=$((attempts+1))
-        downloadwget "$remote_path" "$out_path" || failed=true
+        failed=false
-    else
+        if machine_has "curl"; then
-        failed=true
+            downloadcurl "$remote_path" "$out_path" || failed=true
-    fi
+        elif machine_has "wget"; then
+            downloadwget "$remote_path" "$out_path" || failed=true
+        else
+            say_err "Missing dependency: neither curl nor wget was found."
+            exit 1
+        fi
+
+        if [ "$failed" = false ] || [ $attempts -ge 3 ] || { [ ! -z $http_code ] && [ $http_code = "404" ]; }; then
+            break
+        fi
+
+        say "Download attempt #$attempts has failed: $http_code $download_error_msg"
+        say "Attempt #$((attempts+1)) will start in $((attempts*10)) seconds."
+        sleep $((attempts*20))
+    done
+
+
+
     if [ "$failed" = true ]; then
         say_verbose "Download failed: $remote_path"
         return 1
@@ -761,6 +778,8 @@ download() {
 # Updates global variables $http_code and $download_error_msg
 downloadcurl() {
     eval $invocation
+    unset http_code
+    unset download_error_msg
     local remote_path="$1"
     local out_path="${2:-}"
     # Append feed_credential as late as possible before calling curl to avoid logging feed_credential
@@ -789,6 +808,8 @@ downloadcurl() {
 # Updates global variables $http_code and $download_error_msg
 downloadwget() {
     eval $invocation
+    unset http_code
+    unset download_error_msg
     local remote_path="$1"
     local out_path="${2:-}"
     # Append feed_credential as late as possible before calling wget to avoid logging feed_credential
@@ -882,12 +903,11 @@ install_dotnet() {
     say "Downloading primary link $download_link"
 
     # The download function will set variables $http_code and $download_error_msg in case of failure.
-    http_code=""; download_error_msg=""
     download "$download_link" "$zip_path" 2>&1 || download_failed=true
-    primary_path_http_code="$http_code"; primary_path_download_error_msg="$download_error_msg"
 
     #  if the download fails, download the legacy_download_link
     if [ "$download_failed" = true ]; then
+        primary_path_http_code="$http_code"; primary_path_download_error_msg="$download_error_msg"
         case $primary_path_http_code in
         404)
             say "The resource at $download_link is not available."
@@ -906,11 +926,10 @@ install_dotnet() {
             say "Downloading legacy link $download_link"
 
             # The download function will set variables $http_code and $download_error_msg in case of failure.
-            http_code=""; download_error_msg=""
             download "$download_link" "$zip_path" 2>&1 || download_failed=true
-            legacy_path_http_code="$http_code";  legacy_path_download_error_msg="$download_error_msg"
 
             if [ "$download_failed" = true ]; then
+                legacy_path_http_code="$http_code";  legacy_path_download_error_msg="$download_error_msg"
                 case $legacy_path_http_code in
                 404)
                     say "The resource at $download_link is not available."
@@ -1112,10 +1131,10 @@ do
             echo "      --arch,-Architecture,-Arch"
             echo "          Possible values: x64, arm, and arm64"
             echo "  --os <system>                    Specifies operating system to be used when selecting the installer."
-            echo "          Overrides the OS determination approach used by the script. Supported values: osx, linux, linux-musl, freebsd, rhel.6."  
+            echo "          Overrides the OS determination approach used by the script. Supported values: osx, linux, linux-musl, freebsd, rhel.6."
-            echo "          In case any other value is provided, the platform will be determined by the script based on machine configuration."       
+            echo "          In case any other value is provided, the platform will be determined by the script based on machine configuration."
             echo "          Not supported for legacy links. Use --runtime-id to specify platform for legacy links."
-            echo "          Refer to: https://aka.ms/dotnet-os-lifecycle for more information."                 
+            echo "          Refer to: https://aka.ms/dotnet-os-lifecycle for more information."
             echo "  --runtime <RUNTIME>                Installs a shared runtime only, without the SDK."
             echo "      -Runtime"
             echo "          Possible values:"
@@ -1140,7 +1159,7 @@ do
             echo "                                     Installs just the shared runtime bits, not the entire SDK."
             echo "  --runtime-id                       Installs the .NET Tools for the given platform (use linux-x64 for portable linux)."
             echo "      -RuntimeId"                    The parameter is obsolete and may be removed in a future version of this script. Should be used only for versions below 2.1.
-            echo "                                     For primary links to override OS or/and architecture, use --os and --architecture option instead." 
+            echo "                                     For primary links to override OS or/and architecture, use --os and --architecture option instead."
             echo ""
             echo "Install Location:"
             echo "  Location is chosen in following order:"
@@ -1177,7 +1196,7 @@ if [ "$dry_run" = true ]; then
     if [ "$valid_legacy_download_link" = true ]; then
         say "Legacy named payload URL: $legacy_download_link"
     fi
-    repeatable_command="./$script_name --version "\""$specific_version"\"" --install-dir "\""$install_root"\"" --architecture "\""$normalized_architecture"\"" --os "\""$normalized_os"\""" 
+    repeatable_command="./$script_name --version "\""$specific_version"\"" --install-dir "\""$install_root"\"" --architecture "\""$normalized_architecture"\"" --os "\""$normalized_os"\"""
     if [[ "$runtime" == "dotnet" ]]; then
         repeatable_command+=" --runtime "\""dotnet"\"""
     elif [[ "$runtime" == "aspnetcore" ]]; then

src/Misc/expressionFunc/hashFiles/package-lock.json

@@ -1291,9 +1291,9 @@
       }
     },
     "glob-parent": {
-      "version": "5.1.1",
+      "version": "5.1.2",
-      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.1.tgz",
+      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.2.tgz",
-      "integrity": "sha512-FnI+VGOpnlGHWZxthPGR+QhR78fuiK0sNLkHQv+bL9fQi57lNNdquIbna/WrfROrolq8GK5Ek6BiMwqL/voRYQ==",
+      "integrity": "sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow==",
       "dev": true,
       "requires": {
         "is-glob": "^4.0.1"
@@ -1374,9 +1374,9 @@
       "dev": true
     },
     "hosted-git-info": {
-      "version": "2.8.8",
+      "version": "2.8.9",
-      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.8.tgz",
+      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.9.tgz",
-      "integrity": "sha512-f/wzC2QaWBs7t9IYqB4T3sR1xviIViXJRJTWBlx2Gf3g0Xi5vI7Yy4koXQ1c9OYDGHN9sBy1DQ2AB8fqZBWhUg==",
+      "integrity": "sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw==",
       "dev": true
     },
     "iconv-lite": {
@@ -1683,9 +1683,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.19",
+      "version": "4.17.21",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-      "integrity": "sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
       "dev": true
     },
     "lodash.unescape": {
@@ -1947,9 +1947,9 @@
       "dev": true
     },
     "path-parse": {
-      "version": "1.0.6",
+      "version": "1.0.7",
-      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
-      "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==",
+      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
       "dev": true
     },
     "path-type": {

src/Misc/externals.sh

@@ -4,6 +4,7 @@ PRECACHE=$2
 
 NODE_URL=https://nodejs.org/dist
 NODE12_VERSION="12.13.1"
+NODE16_VERSION="16.13.0"
 
 get_abs_path() {
   # exploits the fact that pwd will print abs path when no args
@@ -126,6 +127,8 @@ function acquireExternalTool() {
 if [[ "$PACKAGERUNTIME" == "win-x64" || "$PACKAGERUNTIME" == "win-x86" ]]; then
     acquireExternalTool "$NODE_URL/v${NODE12_VERSION}/$PACKAGERUNTIME/node.exe" node12/bin
     acquireExternalTool "$NODE_URL/v${NODE12_VERSION}/$PACKAGERUNTIME/node.lib" node12/bin
+    acquireExternalTool "$NODE_URL/v${NODE16_VERSION}/$PACKAGERUNTIME/node.exe" node16/bin
+    acquireExternalTool "$NODE_URL/v${NODE16_VERSION}/$PACKAGERUNTIME/node.lib" node16/bin
     if [[ "$PRECACHE" != "" ]]; then
         acquireExternalTool "https://github.com/microsoft/vswhere/releases/download/2.6.7/vswhere.exe" vswhere
     fi
@@ -134,18 +137,23 @@ fi
 # Download the external tools only for OSX.
 if [[ "$PACKAGERUNTIME" == "osx-x64" ]]; then
     acquireExternalTool "$NODE_URL/v${NODE12_VERSION}/node-v${NODE12_VERSION}-darwin-x64.tar.gz" node12 fix_nested_dir
+    acquireExternalTool "$NODE_URL/v${NODE16_VERSION}/node-v${NODE16_VERSION}-darwin-x64.tar.gz" node16 fix_nested_dir
 fi
 
 # Download the external tools for Linux PACKAGERUNTIMEs.
 if [[ "$PACKAGERUNTIME" == "linux-x64" ]]; then
     acquireExternalTool "$NODE_URL/v${NODE12_VERSION}/node-v${NODE12_VERSION}-linux-x64.tar.gz" node12 fix_nested_dir
     acquireExternalTool "https://vstsagenttools.blob.core.windows.net/tools/nodejs/${NODE12_VERSION}/alpine/x64/node-${NODE12_VERSION}-alpine-x64.tar.gz" node12_alpine
+    acquireExternalTool "$NODE_URL/v${NODE16_VERSION}/node-v${NODE16_VERSION}-linux-x64.tar.gz" node16 fix_nested_dir
+    acquireExternalTool "https://vstsagenttools.blob.core.windows.net/tools/nodejs/${NODE16_VERSION}/alpine/x64/node-v${NODE16_VERSION}-alpine-x64.tar.gz" node16_alpine
 fi
 
 if [[ "$PACKAGERUNTIME" == "linux-arm64" ]]; then
     acquireExternalTool "$NODE_URL/v${NODE12_VERSION}/node-v${NODE12_VERSION}-linux-arm64.tar.gz" node12 fix_nested_dir
+    acquireExternalTool "$NODE_URL/v${NODE16_VERSION}/node-v${NODE16_VERSION}-linux-arm64.tar.gz" node16 fix_nested_dir
 fi
 
 if [[ "$PACKAGERUNTIME" == "linux-arm" ]]; then
     acquireExternalTool "$NODE_URL/v${NODE12_VERSION}/node-v${NODE12_VERSION}-linux-armv7l.tar.gz" node12 fix_nested_dir
+    acquireExternalTool "$NODE_URL/v${NODE16_VERSION}/node-v${NODE16_VERSION}-linux-armv7l.tar.gz" node16 fix_nested_dir
 fi

src/Misc/layoutbin/RunnerService.js

@@ -82,7 +82,8 @@ var gracefulShutdown = function (code) {
         console.log('Sending SIGINT to runner listener to stop');
         listener.kill('SIGINT');
 
-        // TODO wait for 30 seconds and send a SIGKILL
+        console.log('Sending SIGKILL to runner listener');
+        setTimeout(() => listener.kill('SIGKILL'), 30000);
     }
 }
 

src/Misc/layoutbin/actions.runner.plist.template

@@ -25,5 +25,7 @@
     </dict>
     <key>ProcessType</key>
     <string>Interactive</string>
+    <key>SessionCreate</key>
+    <true/>
   </dict>
 </plist>

src/Misc/layoutbin/installdependencies.sh

@@ -94,7 +94,6 @@ then
             fi
         }
 
-        # libssl version prefer: libssl1.1 -> libssl1.0.2 -> libssl1.0.0
         apt_get_with_fallbacks libssl1.1$ libssl1.0.2$ libssl1.0.0$
         if [ $? -ne 0 ]
         then
@@ -103,8 +102,7 @@ then
             exit 1
         fi
 
-        # libicu version prefer: libicu66 -> libicu63 -> libicu60 -> libicu57 -> libicu55 -> libicu52
+        apt_get_with_fallbacks libicu72 libicu71 libicu70 libicu69 libicu68 libicu67 libicu66 libicu65 libicu63 libicu60 libicu57 libicu55 libicu52
-        apt_get_with_fallbacks libicu66 libicu63 libicu60 libicu57 libicu55 libicu52
         if [ $? -ne 0 ]
         then
             echo "'$apt_get' failed with exit code '$?'"

src/Misc/layoutbin/systemd.svc.sh.template

@@ -106,25 +106,37 @@ function stop()
 
 function uninstall()
 {
-    stop
+    if service_exists; then
-    systemctl disable ${SVC_NAME} || failed "failed to disable  ${SVC_NAME}"
+        stop
-    rm "${UNIT_PATH}" || failed "failed to delete ${UNIT_PATH}"
+        systemctl disable ${SVC_NAME} || failed "failed to disable ${SVC_NAME}"
+        rm "${UNIT_PATH}" || failed "failed to delete ${UNIT_PATH}"
+    else
+        echo "Service ${SVC_NAME} is not installed"
+    fi    
     if [ -f "${CONFIG_PATH}" ]; then
       rm "${CONFIG_PATH}" || failed "failed to delete ${CONFIG_PATH}"
     fi
     systemctl daemon-reload || failed "failed to reload daemons"
 }
 
+function service_exists() {
+    if [ -f "${UNIT_PATH}" ]; then
+        return 0
+    else
+        return 1
+    fi
+}
+
 function status()
 {
-    if [ -f "${UNIT_PATH}" ]; then
+    if service_exists; then
         echo
         echo "${UNIT_PATH}"
     else
         echo
         echo "not installed"
         echo
-        return
+        exit 1
     fi
 
     systemctl --no-pager status ${SVC_NAME}

src/Misc/layoutbin/update.sh.template

@@ -18,6 +18,8 @@ downloadrunnerversion=_DOWNLOAD_RUNNER_VERSION_
 logfile="_UPDATE_LOG_"
 restartinteractiverunner=_RESTART_INTERACTIVE_RUNNER_
 
+telemetryfile="$rootfolder/_diag/.telemetry"
+
 # log user who run the script
 date "+[%F %T-%4N] --------whoami--------" >> "$logfile" 2>&1
 whoami >> "$logfile" 2>&1
@@ -118,6 +120,58 @@ then
     exit 1
 fi
 
+# fix upgrade issue with macOS when running as a service
+attemptedtargetedfix=0
+currentplatform=$(uname | awk '{print tolower($0)}')
+if [[ "$currentplatform" == 'darwin'  && restartinteractiverunner -eq 0 ]]; then
+    # We needed a fix for https://github.com/actions/runner/issues/743
+    # We will recreate the ./externals/node12/bin/node of the past runner version that launched the runnerlistener service
+    # Otherwise mac gatekeeper kills the processes we spawn on creation as we are running a process with no backing file
+
+    # We need the pid for the nodejs loop, get that here, its the parent of the runner C# pid
+    # assumption here is only one process is invoking rootfolder/runsvc.sh
+    procgroup=$(ps x -o pgid,command | grep "$rootfolder/runsvc.sh" | grep -v grep | awk '{print $1}')
+    if [[ $? -eq 0 && -n "$procgroup" ]]
+    then
+        # inspect the open file handles to find the node process
+        # we can't actually inspect the process using ps because it uses relative paths and doesn't follow symlinks
+        path=$(lsof -a -g "$procgroup" -F n | grep node12/bin/node | grep externals | tail -1 | cut -c2-)
+        if [[ $? -eq 0 && -n "$path" ]]
+        then
+            # trim the last 5 characters of the path '/node'
+            trimmedpath=$(dirname "$path")
+            if [[ $? -eq 0 && -n "$trimmedpath" ]]
+            then
+                attemptedtargetedfix=1
+                # Create the path if it does not exist
+                if [[ ! -e "$path" ]]
+                then
+                    date "+[%F %T-%4N] Creating fallback node at path $path" >> "$logfile" 2>&1
+                    mkdir -p "$trimmedpath"
+                    cp "$rootfolder/externals/node12/bin/node" "$path"
+                else
+                    date "+[%F %T-%4N] Path for fallback node exists, skipping creating $path" >> "$logfile" 2>&1
+                fi
+            else
+                date "+[%F %T-%4N] DarwinRunnerUpgrade: Failed to trim runner path. TrimmedPath: $trimmedpath, path: $path, pgid: $procgroup, root: $rootfolder" >> "$logfile" 2>&1
+                date "+[%F %T-%4N] DarwinRunnerUpgrade: Failed to trim runner path. TrimmedPath: $trimmedpath, path: $path, pgid: $procgroup, root: $rootfolder" >> "$telemetryfile" 2>&1
+            fi
+        else
+            date "+[%F %T-%4N] DarwinRunnerUpgrade: Failed to find runner path. Path: $path, pgid: $procgroup, root: $rootfolder" >> "$logfile" 2>&1
+            date "+[%F %T-%4N] DarwinRunnerUpgrade: Failed to find runner path. Path: $path, pgid: $procgroup, root: $rootfolder" >> "$telemetryfile" 2>&1
+        fi
+    else
+        runproc=$(ps x -o pgid,command | grep "run.sh" | grep -v grep | awk '{print $1}')
+        if [[ $? -eq 0 && -n "$runproc" ]]
+        then
+            date "+[%F %T-%4N] Running as ephemeral using run.sh, no need to recreate node folder" >> "$logfile" 2>&1
+        else
+            date "+[%F %T-%4N] DarwinRunnerUpgrade: Failed to find runner pgid. pgid: $procgroup, root: $rootfolder" >> "$logfile" 2>&1
+            date "+[%F %T-%4N] DarwinRunnerUpgrade: Failed to find runner pgid. pgid: $procgroup, root: $rootfolder" >> "$telemetryfile" 2>&1
+        fi
+    fi
+fi
+
 date "+[%F %T-%4N] Update succeed" >> "$logfile"
 
 # rename the update log file with %logfile%.succeed/.failed/succeedneedrestart

src/Misc/layoutroot/config.sh

@@ -8,7 +8,7 @@ if [ $user_id -eq 0 -a -z "$RUNNER_ALLOW_RUNASROOT" ]; then
     exit 1
 fi
 
-# Check dotnet core 3.0 dependencies for Linux
+# Check dotnet Core 6.0 dependencies for Linux
 if [[ (`uname` == "Linux") ]]
 then
     command -v ldd > /dev/null
@@ -18,25 +18,25 @@ then
         exit 1
     fi
 
-    message="Execute sudo ./bin/installdependencies.sh to install any missing Dotnet Core 3.0 dependencies."
+    message="Execute sudo ./bin/installdependencies.sh to install any missing Dotnet Core 6.0 dependencies."
 
     ldd ./bin/libcoreclr.so | grep 'not found'
     if [ $? -eq 0 ]; then
-        echo "Dependencies is missing for Dotnet Core 3.0"
+        echo "Dependencies is missing for Dotnet Core 6.0"
         echo $message
         exit 1
     fi
 
-    ldd ./bin/System.Security.Cryptography.Native.OpenSsl.so | grep 'not found'
+    ldd ./bin/libSystem.Security.Cryptography.Native.OpenSsl.so | grep 'not found'
     if [ $? -eq 0 ]; then
-        echo "Dependencies is missing for Dotnet Core 3.0"
+        echo "Dependencies is missing for Dotnet Core 6.0"
         echo $message
         exit 1
     fi
 
-    ldd ./bin/System.IO.Compression.Native.so | grep 'not found'
+    ldd ./bin/libSystem.IO.Compression.Native.so | grep 'not found'
     if [ $? -eq 0 ]; then
-        echo "Dependencies is missing for Dotnet Core 3.0"
+        echo "Dependencies is missing for Dotnet Core 6.0"
         echo $message
         exit 1
     fi
@@ -54,7 +54,7 @@ then
     libpath=${LD_LIBRARY_PATH:-}
     $LDCONFIG_COMMAND -NXv ${libpath//:/ } 2>&1 | grep libicu >/dev/null 2>&1
     if [ $? -ne 0 ]; then
-        echo "Libicu's dependencies is missing for Dotnet Core 3.0"
+        echo "Libicu's dependencies is missing for Dotnet Core 6.0"
         echo $message
         exit 1
     fi

src/Misc/layoutroot/run.sh

@@ -43,6 +43,21 @@ else
         else
             sleep 5
         fi
+    elif [[ $returnCode == 4 ]]; then
+        if [ ! -x "$(command -v sleep)" ]; then
+            if [ ! -x "$(command -v ping)" ]; then
+                COUNT="0"
+                while [[ $COUNT != 5000 ]]; do
+                    echo "SLEEP" > /dev/null
+                    COUNT=$[$COUNT+1]
+                done
+            else
+                ping -c 5 127.0.0.1 > /dev/null
+            fi
+        else
+            sleep 5
+        fi
+        "$DIR"/bin/Runner.Listener run $*
     else
         exit $returnCode
     fi

src/Misc/runnercoreassets

@@ -0,0 +1,57 @@
+actions.runner.plist.template
+actions.runner.service.template
+checkScripts/downloadCert.js
+checkScripts/makeWebRequest.js
+darwin.svc.sh.template
+hashFiles/index.js
+installdependencies.sh
+macos-run-invoker.js
+Microsoft.IdentityModel.Logging.dll
+Microsoft.IdentityModel.Tokens.dll
+Minimatch.dll
+Newtonsoft.Json.Bson.dll
+Newtonsoft.Json.dll
+Runner.Common.deps.json
+Runner.Common.dll
+Runner.Common.pdb
+Runner.Listener
+Runner.Listener.deps.json
+Runner.Listener.dll
+Runner.Listener.exe
+Runner.Listener.pdb
+Runner.Listener.runtimeconfig.json
+Runner.PluginHost
+Runner.PluginHost.deps.json
+Runner.PluginHost.dll
+Runner.PluginHost.exe
+Runner.PluginHost.pdb
+Runner.PluginHost.runtimeconfig.json
+Runner.Plugins.deps.json
+Runner.Plugins.dll
+Runner.Plugins.pdb
+Runner.Sdk.deps.json
+Runner.Sdk.dll
+Runner.Sdk.pdb
+Runner.Worker
+Runner.Worker.deps.json
+Runner.Worker.dll
+Runner.Worker.exe
+Runner.Worker.pdb
+Runner.Worker.runtimeconfig.json
+RunnerService.exe
+RunnerService.exe.config
+RunnerService.js
+RunnerService.pdb
+runsvc.sh
+Sdk.deps.json
+Sdk.dll
+Sdk.pdb
+System.IdentityModel.Tokens.Jwt.dll
+System.Net.Http.Formatting.dll
+System.Security.Cryptography.Pkcs.dll
+System.Security.Cryptography.ProtectedData.dll
+System.ServiceProcess.ServiceController.dll
+systemd.svc.sh.template
+update.cmd.template
+update.sh.template
+YamlDotNet.dll

src/Misc/runnerdotnetruntimeassets

@@ -0,0 +1,263 @@
+api-ms-win-core-console-l1-1-0.dll
+api-ms-win-core-console-l1-2-0.dll
+api-ms-win-core-datetime-l1-1-0.dll
+api-ms-win-core-debug-l1-1-0.dll
+api-ms-win-core-errorhandling-l1-1-0.dll
+api-ms-win-core-file-l1-1-0.dll
+api-ms-win-core-file-l1-2-0.dll
+api-ms-win-core-file-l2-1-0.dll
+api-ms-win-core-handle-l1-1-0.dll
+api-ms-win-core-heap-l1-1-0.dll
+api-ms-win-core-interlocked-l1-1-0.dll
+api-ms-win-core-libraryloader-l1-1-0.dll
+api-ms-win-core-localization-l1-2-0.dll
+api-ms-win-core-memory-l1-1-0.dll
+api-ms-win-core-namedpipe-l1-1-0.dll
+api-ms-win-core-processenvironment-l1-1-0.dll
+api-ms-win-core-processthreads-l1-1-0.dll
+api-ms-win-core-processthreads-l1-1-1.dll
+api-ms-win-core-profile-l1-1-0.dll
+api-ms-win-core-rtlsupport-l1-1-0.dll
+api-ms-win-core-string-l1-1-0.dll
+api-ms-win-core-synch-l1-1-0.dll
+api-ms-win-core-synch-l1-2-0.dll
+api-ms-win-core-sysinfo-l1-1-0.dll
+api-ms-win-core-timezone-l1-1-0.dll
+api-ms-win-core-util-l1-1-0.dll
+api-ms-win-crt-conio-l1-1-0.dll
+api-ms-win-crt-convert-l1-1-0.dll
+api-ms-win-crt-environment-l1-1-0.dll
+api-ms-win-crt-filesystem-l1-1-0.dll
+api-ms-win-crt-heap-l1-1-0.dll
+api-ms-win-crt-locale-l1-1-0.dll
+api-ms-win-crt-math-l1-1-0.dll
+api-ms-win-crt-multibyte-l1-1-0.dll
+api-ms-win-crt-private-l1-1-0.dll
+api-ms-win-crt-process-l1-1-0.dll
+api-ms-win-crt-runtime-l1-1-0.dll
+api-ms-win-crt-stdio-l1-1-0.dll
+api-ms-win-crt-string-l1-1-0.dll
+api-ms-win-crt-time-l1-1-0.dll
+api-ms-win-crt-utility-l1-1-0.dll
+clrcompression.dll
+clretwrc.dll
+clrjit.dll
+coreclr.dll
+createdump
+createdump.exe
+dbgshim.dll
+hostfxr.dll
+hostpolicy.dll
+libclrjit.dylib
+libclrjit.so
+libcoreclr.dylib
+libcoreclr.so
+libcoreclrtraceptprovider.so
+libdbgshim.dylib
+libdbgshim.so
+libhostfxr.dylib
+libhostfxr.so
+libhostpolicy.dylib
+libhostpolicy.so
+libmscordaccore.dylib
+libmscordaccore.so
+libmscordbi.dylib
+libmscordbi.so
+Microsoft.CSharp.dll
+Microsoft.DiaSymReader.Native.amd64.dll
+Microsoft.VisualBasic.Core.dll
+Microsoft.VisualBasic.dll
+Microsoft.Win32.Primitives.dll
+Microsoft.Win32.Registry.dll
+mscordaccore.dll
+mscordaccore_amd64_amd64_6.0.21.52210.dll
+mscordbi.dll
+mscorlib.dll
+mscorrc.debug.dll
+mscorrc.dll
+msquic.dll
+netstandard.dll
+SOS_README.md
+System.AppContext.dll
+System.Buffers.dll
+System.Collections.Concurrent.dll
+System.Collections.dll
+System.Collections.Immutable.dll
+System.Collections.NonGeneric.dll
+System.Collections.Specialized.dll
+System.ComponentModel.Annotations.dll
+System.ComponentModel.DataAnnotations.dll
+System.ComponentModel.dll
+System.ComponentModel.EventBasedAsync.dll
+System.ComponentModel.Primitives.dll
+System.ComponentModel.TypeConverter.dll
+System.Configuration.dll
+System.Console.dll
+System.Core.dll
+System.Data.Common.dll
+System.Data.DataSetExtensions.dll
+System.Data.dll
+System.Diagnostics.Contracts.dll
+System.Diagnostics.Debug.dll
+System.Diagnostics.DiagnosticSource.dll
+System.Diagnostics.FileVersionInfo.dll
+System.Diagnostics.Process.dll
+System.Diagnostics.StackTrace.dll
+System.Diagnostics.TextWriterTraceListener.dll
+System.Diagnostics.Tools.dll
+System.Diagnostics.TraceSource.dll
+System.Diagnostics.Tracing.dll
+System.dll
+System.Drawing.dll
+System.Drawing.Primitives.dll
+System.Dynamic.Runtime.dll
+System.Formats.Asn1.dll
+System.Globalization.Calendars.dll
+System.Globalization.dll
+System.Globalization.Extensions.dll
+System.Globalization.Native.dylib
+System.Globalization.Native.so
+System.IO.Compression.Brotli.dll
+System.IO.Compression.dll
+System.IO.Compression.FileSystem.dll
+System.IO.Compression.Native.a
+System.IO.Compression.Native.dll
+System.IO.Compression.Native.dylib
+System.IO.Compression.Native.so
+System.IO.Compression.ZipFile.dll
+System.IO.dll
+System.IO.FileSystem.AccessControl.dll
+System.IO.FileSystem.dll
+System.IO.FileSystem.DriveInfo.dll
+System.IO.FileSystem.Primitives.dll
+System.IO.FileSystem.Watcher.dll
+System.IO.IsolatedStorage.dll
+System.IO.MemoryMappedFiles.dll
+System.IO.Pipes.AccessControl.dll
+System.IO.Pipes.dll
+System.IO.UnmanagedMemoryStream.dll
+System.Linq.dll
+System.Linq.Expressions.dll
+System.Linq.Parallel.dll
+System.Linq.Queryable.dll
+System.Memory.dll
+System.Native.a
+System.Native.dylib
+System.Native.so
+System.Net.dll
+System.Net.Http.dll
+System.Net.Http.Json.dll
+System.Net.Http.Native.a
+System.Net.Http.Native.dylib
+System.Net.Http.Native.so
+System.Net.HttpListener.dll
+System.Net.Mail.dll
+System.Net.NameResolution.dll
+System.Net.NetworkInformation.dll
+System.Net.Ping.dll
+System.Net.Primitives.dll
+System.Net.Quic.dll
+System.Net.Requests.dll
+System.Net.Security.dll
+System.Net.Security.Native.a
+System.Net.Security.Native.dylib
+System.Net.Security.Native.so
+System.Net.ServicePoint.dll
+System.Net.Sockets.dll
+System.Net.WebClient.dll
+System.Net.WebHeaderCollection.dll
+System.Net.WebProxy.dll
+System.Net.WebSockets.Client.dll
+System.Net.WebSockets.dll
+System.Numerics.dll
+System.Numerics.Vectors.dll
+System.ObjectModel.dll
+System.Private.CoreLib.dll
+System.Private.DataContractSerialization.dll
+System.Private.Uri.dll
+System.Private.Xml.dll
+System.Private.Xml.Linq.dll
+System.Reflection.DispatchProxy.dll
+System.Reflection.dll
+System.Reflection.Emit.dll
+System.Reflection.Emit.ILGeneration.dll
+System.Reflection.Emit.Lightweight.dll
+System.Reflection.Extensions.dll
+System.Reflection.Metadata.dll
+System.Reflection.Primitives.dll
+System.Reflection.TypeExtensions.dll
+System.Resources.Reader.dll
+System.Resources.ResourceManager.dll
+System.Resources.Writer.dll
+System.Runtime.CompilerServices.Unsafe.dll
+System.Runtime.CompilerServices.VisualC.dll
+System.Runtime.dll
+System.Runtime.Extensions.dll
+System.Runtime.Handles.dll
+System.Runtime.InteropServices.dll
+System.Runtime.InteropServices.RuntimeInformation.dll
+System.Runtime.InteropServices.WindowsRuntime.dll
+System.Runtime.Intrinsics.dll
+System.Runtime.Loader.dll
+System.Runtime.Numerics.dll
+System.Runtime.Serialization.dll
+System.Runtime.Serialization.Formatters.dll
+System.Runtime.Serialization.Json.dll
+System.Runtime.Serialization.Primitives.dll
+System.Runtime.Serialization.Xml.dll
+System.Runtime.WindowsRuntime.dll
+System.Runtime.WindowsRuntime.UI.Xaml.dll
+System.Security.AccessControl.dll
+System.Security.Claims.dll
+System.Security.Cryptography.Algorithms.dll
+System.Security.Cryptography.Cng.dll
+System.Security.Cryptography.Csp.dll
+System.Security.Cryptography.Encoding.dll
+System.Security.Cryptography.Native.Apple.a
+System.Security.Cryptography.Native.Apple.dylib
+System.Security.Cryptography.Native.OpenSsl.a
+System.Security.Cryptography.Native.OpenSsl.dylib
+System.Security.Cryptography.Native.OpenSsl.so
+System.Security.Cryptography.OpenSsl.dll
+System.Security.Cryptography.Primitives.dll
+System.Security.Cryptography.X509Certificates.dll
+System.Security.Cryptography.XCertificates.dll
+System.Security.dll
+System.Security.Principal.dll
+System.Security.Principal.Windows.dll
+System.Security.SecureString.dll
+System.ServiceModel.Web.dll
+System.ServiceProcess.dll
+System.Text.Encoding.CodePages.dll
+System.Text.Encoding.dll
+System.Text.Encoding.Extensions.dll
+System.Text.Encodings.Web.dll
+System.Text.Json.dll
+System.Text.RegularExpressions.dll
+System.Threading.Channels.dll
+System.Threading.dll
+System.Threading.Overlapped.dll
+System.Threading.Tasks.Dataflow.dll
+System.Threading.Tasks.dll
+System.Threading.Tasks.Extensions.dll
+System.Threading.Tasks.Parallel.dll
+System.Threading.Thread.dll
+System.Threading.ThreadPool.dll
+System.Threading.Timer.dll
+System.Transactions.dll
+System.Transactions.Local.dll
+System.ValueTuple.dll
+System.Web.dll
+System.Web.HttpUtility.dll
+System.Windows.dll
+System.Xml.dll
+System.Xml.Linq.dll
+System.Xml.ReaderWriter.dll
+System.Xml.Serialization.dll
+System.Xml.XDocument.dll
+System.Xml.XmlDocument.dll
+System.Xml.XmlSerializer.dll
+System.Xml.XPath.dll
+System.Xml.XPath.XDocument.dll
+ucrtbase.dll
+WindowsBase.dll

src/Misc/trimmedpackages_targz.json

@@ -0,0 +1,24 @@
+[
+    {
+        "HashValue": "<NO_RUNTIME_EXTERNALS_HASH>",
+        "DownloadUrl": "https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>/actions-runner-<RUNNER_PLATFORM>-<RUNNER_VERSION>-noruntime-noexternals.tar.gz",
+        "TrimmedContents": {
+            "dotnetRuntime": "<RUNTIME_HASH>",
+            "externals": "<EXTERNALS_HASH>"
+        }
+    },
+    {
+        "HashValue": "<NO_RUNTIME_HASH>",
+        "DownloadUrl": "https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>/actions-runner-<RUNNER_PLATFORM>-<RUNNER_VERSION>-noruntime.tar.gz",
+        "TrimmedContents": {
+            "dotnetRuntime": "<RUNTIME_HASH>"
+        }
+    },
+    {
+        "HashValue": "<NO_EXTERNALS_HASH>",
+        "DownloadUrl": "https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>/actions-runner-<RUNNER_PLATFORM>-<RUNNER_VERSION>-noexternals.tar.gz",
+        "TrimmedContents": {
+            "externals": "<EXTERNALS_HASH>"
+        }
+    }
+]

src/Misc/trimmedpackages_zip.json

@@ -0,0 +1,24 @@
+[
+    {
+        "HashValue": "<NO_RUNTIME_EXTERNALS_HASH>",
+        "DownloadUrl": "https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>/actions-runner-<RUNNER_PLATFORM>-<RUNNER_VERSION>-noruntime-noexternals.zip",
+        "TrimmedContents": {
+            "dotnetRuntime": "<RUNTIME_HASH>",
+            "externals": "<EXTERNALS_HASH>"
+        }
+    },
+    {
+        "HashValue": "<NO_RUNTIME_HASH>",
+        "DownloadUrl": "https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>/actions-runner-<RUNNER_PLATFORM>-<RUNNER_VERSION>-noruntime.zip",
+        "TrimmedContents": {
+            "dotnetRuntime": "<RUNTIME_HASH>"
+        }
+    },
+    {
+        "HashValue": "<NO_EXTERNALS_HASH>",
+        "DownloadUrl": "https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>/actions-runner-<RUNNER_PLATFORM>-<RUNNER_VERSION>-noexternals.zip",
+        "TrimmedContents": {
+            "externals": "<EXTERNALS_HASH>"
+        }
+    }
+]

src/Runner.Common/ConfigurationStore.cs

@@ -33,6 +33,9 @@ namespace GitHub.Runner.Common
         [DataMember(EmitDefaultValue = false)]
         public string PoolName { get; set; }
 
+        [DataMember(EmitDefaultValue = false)]
+        public bool Ephemeral { get; set; }
+
         [DataMember(EmitDefaultValue = false)]
         public string ServerUrl { get; set; }
 

src/Runner.Common/Constants.cs

@@ -26,6 +26,7 @@ namespace GitHub.Runner.Common
         Certificates,
         Options,
         SetupInfo,
+        Telemetry
     }
 
     public static class Constants
@@ -41,6 +42,8 @@ namespace GitHub.Runner.Common
         public static string PluginTracePrefix = "##[plugin.trace]";
         public static readonly int RunnerDownloadRetryMaxAttempts = 3;
 
+        public static readonly int CompositeActionsMaxDepth = 9;
+
         // This enum is embedded within the Constants class to make it easier to reference and avoid
         // ambiguous type reference with System.Runtime.InteropServices.OSPlatform and System.Runtime.InteropServices.Architecture
         public enum OSPlatform
@@ -123,9 +126,10 @@ namespace GitHub.Runner.Common
                 {
                     public static readonly string Check = "check";
                     public static readonly string Commit = "commit";
+                    public static readonly string Ephemeral = "ephemeral";
                     public static readonly string Help = "help";
                     public static readonly string Replace = "replace";
-                    public static readonly string Once = "once";
+                    public static readonly string Once = "once"; // Keep this around since customers still relies on it
                     public static readonly string RunAsService = "runasservice";
                     public static readonly string Unattended = "unattended";
                     public static readonly string Version = "version";
@@ -151,6 +155,7 @@ namespace GitHub.Runner.Common
             public static readonly string LowDiskSpace = "LOW_DISK_SPACE";
             public static readonly string UnsupportedCommand = "UNSUPPORTED_COMMAND";
             public static readonly string UnsupportedCommandMessageDisabled = "The `{0}` command is disabled. Please upgrade to using Environment Files or opt into unsecure command execution by setting the `ACTIONS_ALLOW_UNSECURE_COMMANDS` environment variable to `true`. For more information see: https://github.blog/changelog/2020-10-01-github-actions-deprecating-set-env-and-add-path-commands/";
+            public static readonly string UnsupportedStopCommandTokenDisabled = "You cannot use a endToken that is an empty string, the string 'pause-logging', or another workflow command. For more information see:  https://docs.github.com/en/actions/learn-github-actions/workflow-commands-for-github-actions#example-stopping-and-starting-workflow-commands or opt into insecure command execution by setting the `ACTIONS_ALLOW_UNSECURE_STOPCOMMAND_TOKENS` environment variable to `true`.";
         }
 
         public static class RunnerEvent
@@ -210,6 +215,7 @@ namespace GitHub.Runner.Common
                 // Keep alphabetical
                 //
                 public static readonly string AllowUnsupportedCommands = "ACTIONS_ALLOW_UNSECURE_COMMANDS";
+                public static readonly string AllowUnsupportedStopCommandTokens = "ACTIONS_ALLOW_UNSECURE_STOPCOMMAND_TOKENS";
                 public static readonly string RunnerDebug = "ACTIONS_RUNNER_DEBUG";
                 public static readonly string StepDebug = "ACTIONS_STEP_DEBUG";
             }

src/Runner.Common/ExtensionManager.cs

@@ -51,6 +51,7 @@ namespace GitHub.Runner.Common
                     Add<T>(extensions, "GitHub.Runner.Worker.RemoveMatcherCommandExtension, Runner.Worker");
                     Add<T>(extensions, "GitHub.Runner.Worker.WarningCommandExtension, Runner.Worker");
                     Add<T>(extensions, "GitHub.Runner.Worker.ErrorCommandExtension, Runner.Worker");
+                    Add<T>(extensions, "GitHub.Runner.Worker.NoticeCommandExtension, Runner.Worker");
                     Add<T>(extensions, "GitHub.Runner.Worker.DebugCommandExtension, Runner.Worker");
                     Add<T>(extensions, "GitHub.Runner.Worker.GroupCommandExtension, Runner.Worker");
                     Add<T>(extensions, "GitHub.Runner.Worker.EndGroupCommandExtension, Runner.Worker");

src/Runner.Common/HostContext.cs

@@ -84,25 +84,28 @@ namespace GitHub.Runner.Common
             this.SecretMasker.AddValueEncoder(ValueEncoders.Base64StringEscape);
             this.SecretMasker.AddValueEncoder(ValueEncoders.Base64StringEscapeShift1);
             this.SecretMasker.AddValueEncoder(ValueEncoders.Base64StringEscapeShift2);
+            this.SecretMasker.AddValueEncoder(ValueEncoders.CommandLineArgumentEscape);
             this.SecretMasker.AddValueEncoder(ValueEncoders.ExpressionStringEscape);
             this.SecretMasker.AddValueEncoder(ValueEncoders.JsonStringEscape);
             this.SecretMasker.AddValueEncoder(ValueEncoders.UriDataEscape);
             this.SecretMasker.AddValueEncoder(ValueEncoders.XmlDataEscape);
             this.SecretMasker.AddValueEncoder(ValueEncoders.TrimDoubleQuotes);
+            this.SecretMasker.AddValueEncoder(ValueEncoders.PowerShellPreAmpersandEscape);
+            this.SecretMasker.AddValueEncoder(ValueEncoders.PowerShellPostAmpersandEscape);
 
             // Create the trace manager.
             if (string.IsNullOrEmpty(logFile))
             {
                 int logPageSize;
                 string logSizeEnv = Environment.GetEnvironmentVariable($"{hostType.ToUpperInvariant()}_LOGSIZE");
-                if (!string.IsNullOrEmpty(logSizeEnv) || !int.TryParse(logSizeEnv, out logPageSize))
+                if (string.IsNullOrEmpty(logSizeEnv) || !int.TryParse(logSizeEnv, out logPageSize))
                 {
                     logPageSize = _defaultLogPageSize;
                 }
 
                 int logRetentionDays;
                 string logRetentionDaysEnv = Environment.GetEnvironmentVariable($"{hostType.ToUpperInvariant()}_LOGRETENTION");
-                if (!string.IsNullOrEmpty(logRetentionDaysEnv) || !int.TryParse(logRetentionDaysEnv, out logRetentionDays))
+                if (string.IsNullOrEmpty(logRetentionDaysEnv) || !int.TryParse(logRetentionDaysEnv, out logRetentionDays))
                 {
                     logRetentionDays = _defaultLogRetentionDays;
                 }
@@ -197,9 +200,17 @@ namespace GitHub.Runner.Common
                 if (credData != null &&
                     credData.Data.TryGetValue("clientId", out var clientId))
                 {
-                    _userAgents.Add(new ProductInfoHeaderValue($"RunnerId", clientId));
+                    _userAgents.Add(new ProductInfoHeaderValue("ClientId", clientId));
                 }
             }
+
+            var runnerFile = GetConfigFile(WellKnownConfigFile.Runner);
+            if (File.Exists(runnerFile))
+            {
+                var runnerSettings = IOUtil.LoadObject<RunnerSettings>(runnerFile);
+                _userAgents.Add(new ProductInfoHeaderValue("RunnerId", runnerSettings.AgentId.ToString(CultureInfo.InvariantCulture)));
+                _userAgents.Add(new ProductInfoHeaderValue("GroupId", runnerSettings.PoolId.ToString(CultureInfo.InvariantCulture)));
+            }
         }
 
         public string GetDirectory(WellKnownDirectory directory)
@@ -339,6 +350,12 @@ namespace GitHub.Runner.Common
                         GetDirectory(WellKnownDirectory.Root),
                         ".setup_info");
                     break;
+                
+                case WellKnownConfigFile.Telemetry:
+                    path = Path.Combine(
+                        GetDirectory(WellKnownDirectory.Diag),
+                        ".telemetry");
+                    break;
 
                 default:
                     throw new NotSupportedException($"Unexpected well known config file: '{configFile}'");

src/Runner.Common/JobServer.cs

@@ -2,8 +2,11 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Net.Http;
 using System.Threading;
 using System.Threading.Tasks;
+using GitHub.Runner.Sdk;
+using GitHub.Services.Common;
 using GitHub.Services.WebApi;
 
 namespace GitHub.Runner.Common
@@ -35,7 +38,11 @@ namespace GitHub.Runner.Common
         public async Task ConnectAsync(VssConnection jobConnection)
         {
             _connection = jobConnection;
-            int attemptCount = 5;
+            int totalAttempts = 5;
+            int attemptCount = totalAttempts;
+            var configurationStore = HostContext.GetService<IConfigurationStore>();
+            var runnerSettings = configurationStore.GetSettings();
+ 
             while (!_connection.HasAuthenticated && attemptCount-- > 0)
             {
                 try
@@ -45,17 +52,71 @@ namespace GitHub.Runner.Common
                 }
                 catch (Exception ex) when (attemptCount > 0)
                 {
-                    Trace.Info($"Catch exception during connect. {attemptCount} attemp left.");
+                    Trace.Info($"Catch exception during connect. {attemptCount} attempts left.");
                     Trace.Error(ex);
+
+                    if (runnerSettings.IsHostedServer)
+                    {
+                        await CheckNetworkEndpointsAsync(attemptCount);
+                    }
                 }
 
-                await Task.Delay(100);
+                int attempt = totalAttempts - attemptCount;
+                TimeSpan backoff = BackoffTimerHelper.GetExponentialBackoff(attempt, TimeSpan.FromMilliseconds(100), TimeSpan.FromSeconds(3.2), TimeSpan.FromMilliseconds(100));
+
+                await Task.Delay(backoff);
             }
 
             _taskClient = _connection.GetClient<TaskHttpClient>();
             _hasConnection = true;
         }
 
+        private async Task CheckNetworkEndpointsAsync(int attemptsLeft)
+        {
+            try
+            {
+                Trace.Info("Requesting Actions Service health endpoint status");
+                using (var httpClientHandler = HostContext.CreateHttpClientHandler())
+                using (var actionsClient = new HttpClient(httpClientHandler))
+                {
+                    var baseUri = new Uri(_connection.Uri.GetLeftPart(UriPartial.Authority));
+
+                    actionsClient.DefaultRequestHeaders.UserAgent.AddRange(HostContext.UserAgents);
+
+                    // Call the _apis/health endpoint, and include how many attempts are left as a URL query for easy tracking
+                    var response = await actionsClient.GetAsync(new Uri(baseUri, $"_apis/health?_internalRunnerAttemptsLeft={attemptsLeft}"));
+                    Trace.Info($"Actions health status code: {response.StatusCode}");
+                }
+            }
+            catch (Exception ex)
+            {
+                // Log error, but continue as this call is best-effort
+                Trace.Info($"Actions Service health endpoint failed due to {ex.GetType().Name}");
+                Trace.Error(ex);
+            }
+
+            try
+            {
+                Trace.Info("Requesting Github API endpoint status");
+                // This is a dotcom public API... just call it directly
+                using (var httpClientHandler = HostContext.CreateHttpClientHandler())
+                using (var gitHubClient = new HttpClient(httpClientHandler))
+                {
+                    gitHubClient.DefaultRequestHeaders.UserAgent.AddRange(HostContext.UserAgents);
+
+                    // Call the api.github.com endpoint, and include how many attempts are left as a URL query for easy tracking
+                    var response = await gitHubClient.GetAsync($"https://api.github.com?_internalRunnerAttemptsLeft={attemptsLeft}");
+                    Trace.Info($"api.github.com status code: {response.StatusCode}");
+                }
+            }
+            catch (Exception ex)
+            {
+                // Log error, but continue as this call is best-effort
+                Trace.Info($"Github API endpoint failed due to {ex.GetType().Name}");
+                Trace.Error(ex);
+            }
+        }
+
         private void CheckConnection()
         {
             if (!_hasConnection)

src/Runner.Common/JobServerQueue.cs

@@ -15,6 +15,7 @@ namespace GitHub.Runner.Common
     [ServiceLocator(Default = typeof(JobServerQueue))]
     public interface IJobServerQueue : IRunnerService, IThrottlingReporter
     {
+        TaskCompletionSource<int> JobRecordUpdated { get; }
         event EventHandler<ThrottlingEventArgs> JobServerQueueThrottling;
         Task ShutdownAsync();
         void Start(Pipelines.AgentJobRequestMessage jobRequest);
@@ -62,8 +63,11 @@ namespace GitHub.Runner.Common
         private IJobServer _jobServer;
         private Task[] _allDequeueTasks;
         private readonly TaskCompletionSource<int> _jobCompletionSource = new TaskCompletionSource<int>();
+        private readonly TaskCompletionSource<int> _jobRecordUpdated = new TaskCompletionSource<int>();
         private bool _queueInProcess = false;
 
+        public TaskCompletionSource<int> JobRecordUpdated => _jobRecordUpdated;
+
         public event EventHandler<ThrottlingEventArgs> JobServerQueueThrottling;
 
         // Web console dequeue will start with process queue every 250ms for the first 60*4 times (~60 seconds).
@@ -287,11 +291,11 @@ namespace GitHub.Runner.Common
                                 {
                                     await _jobServer.AppendTimelineRecordFeedAsync(_scopeIdentifier, _hubName, _planId, _jobTimelineId, _jobTimelineRecordId, stepRecordId, batch.Select(logLine => logLine.Line).ToList(), batch[0].LineNumber.Value, default(CancellationToken));
                                 }
-                                else 
+                                else
                                 {
                                     await _jobServer.AppendTimelineRecordFeedAsync(_scopeIdentifier, _hubName, _planId, _jobTimelineId, _jobTimelineRecordId, stepRecordId, batch.Select(logLine => logLine.Line).ToList(), default(CancellationToken));
                                 }
-                                
+
                                 if (_firstConsoleOutputs)
                                 {
                                     HostContext.WritePerfCounter($"WorkerJobServerQueueAppendFirstConsoleOutput_{_planId.ToString()}");
@@ -455,6 +459,14 @@ namespace GitHub.Runner.Common
                             {
                                 Trace.Verbose("Cleanup buffered timeline record for timeline: {0}.", update.TimelineId);
                             }
+
+                            if (!_jobRecordUpdated.Task.IsCompleted &&
+                                update.PendingRecords.Any(x => x.Id == _jobTimelineRecordId && x.State != null))
+                            {
+                                // We have changed the state of the job
+                                Trace.Info("Job timeline record has been updated for the first time.");
+                                _jobRecordUpdated.TrySetResult(0);
+                            }
                         }
                         catch (Exception ex)
                         {
@@ -544,6 +556,11 @@ namespace GitHub.Runner.Common
                         timelineRecord.WarningCount = rec.WarningCount;
                     }
 
+                    if (rec.NoticeCount != null && rec.NoticeCount > 0)
+                    {
+                        timelineRecord.NoticeCount = rec.NoticeCount;
+                    }
+
                     if (rec.Issues.Count > 0)
                     {
                         timelineRecord.Issues.Clear();

src/Runner.Common/Logging.cs

@@ -101,7 +101,7 @@ namespace GitHub.Runner.Common
             EndPage();
             _byteCount = 0;
             _dataFileName = Path.Combine(_pagesFolder, $"{_timelineId}_{_timelineRecordId}_{++_pageCount}.log");
-            _pageData = new FileStream(_dataFileName, FileMode.CreateNew);
+            _pageData = new FileStream(_dataFileName, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.ReadWrite);
             _pageWriter = new StreamWriter(_pageData, System.Text.Encoding.UTF8);
         }
 

src/Runner.Common/ProcessChannel.cs

@@ -3,6 +3,7 @@ using System.IO;
 using System.IO.Pipes;
 using System.Threading;
 using System.Threading.Tasks;
+using GitHub.Runner.Sdk;
 
 namespace GitHub.Runner.Common
 {
@@ -68,6 +69,7 @@ namespace GitHub.Runner.Common
 
         public async Task SendAsync(MessageType messageType, string body, CancellationToken cancellationToken)
         {
+            Trace.Info($"Sending message of length {body.Length}, with hash '{IOUtil.GetSha256Hash(body)}'");
             await _writeStream.WriteInt32Async((int)messageType, cancellationToken);
             await _writeStream.WriteStringAsync(body, cancellationToken);
         }
@@ -77,6 +79,7 @@ namespace GitHub.Runner.Common
             WorkerMessage result = new WorkerMessage(MessageType.NotInitialized, string.Empty);
             result.MessageType = (MessageType)await _readStream.ReadInt32Async(cancellationToken);
             result.Body = await _readStream.ReadStringAsync(cancellationToken);
+            Trace.Info($"Receiving message of length {result.Body.Length}, with hash '{IOUtil.GetSha256Hash(result.Body)}'");
             return result;
         }
 

src/Runner.Common/Runner.Common.csproj

@@ -1,14 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <OutputType>Library</OutputType>
     <RuntimeIdentifiers>win-x64;win-x86;linux-x64;linux-arm64;linux-arm;osx-x64</RuntimeIdentifiers>
     <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
-    <AssetTargetFallback>portable-net45+win8</AssetTargetFallback>
     <NoWarn>NU1701;NU1603</NoWarn>
     <Version>$(Version)</Version>
-    <TieredCompilationQuickJit>true</TieredCompilationQuickJit>
   </PropertyGroup>
 
   <ItemGroup>

src/Runner.Common/RunnerServer.cs

@@ -29,8 +29,10 @@ namespace GitHub.Runner.Common
         // Configuration
         Task<TaskAgent> AddAgentAsync(Int32 agentPoolId, TaskAgent agent);
         Task DeleteAgentAsync(int agentPoolId, int agentId);
+        Task DeleteAgentAsync(int agentId);
         Task<List<TaskAgentPool>> GetAgentPoolsAsync(string agentPoolName = null, TaskAgentPoolType poolType = TaskAgentPoolType.Automation);
         Task<List<TaskAgent>> GetAgentsAsync(int agentPoolId, string agentName = null);
+        Task<List<TaskAgent>> GetAgentsAsync(string agentName);
         Task<TaskAgent> ReplaceAgentAsync(int agentPoolId, TaskAgent agent);
 
         // messagequeue
@@ -49,7 +51,7 @@ namespace GitHub.Runner.Common
         Task<PackageMetadata> GetPackageAsync(string packageType, string platform, string version, bool includeToken, CancellationToken cancellationToken);
 
         // agent update
-        Task<TaskAgent> UpdateAgentUpdateStateAsync(int agentPoolId, int agentId, string currentState);
+        Task<TaskAgent> UpdateAgentUpdateStateAsync(int agentPoolId, int agentId, string currentState, string trace);
     }
 
     public sealed class RunnerServer : RunnerService, IRunnerServer
@@ -252,6 +254,11 @@ namespace GitHub.Runner.Common
             return _genericTaskAgentClient.GetAgentsAsync(agentPoolId, agentName, false);
         }
 
+        public Task<List<TaskAgent>> GetAgentsAsync(string agentName)
+        {
+            return GetAgentsAsync(0, agentName); // search in all all agentPools
+        }
+
         public Task<TaskAgent> ReplaceAgentAsync(int agentPoolId, TaskAgent agent)
         {
             CheckConnection(RunnerConnectionType.Generic);
@@ -264,6 +271,11 @@ namespace GitHub.Runner.Common
             return _genericTaskAgentClient.DeleteAgentAsync(agentPoolId, agentId);
         }
 
+        public Task DeleteAgentAsync(int agentId)
+        {
+            return DeleteAgentAsync(0, agentId); // agentPool is ignored server side
+        }
+
         //-----------------------------------------------------------------
         // MessageQueue
         //-----------------------------------------------------------------
@@ -329,25 +341,10 @@ namespace GitHub.Runner.Common
             return _genericTaskAgentClient.GetPackageAsync(packageType, platform, version, includeToken, cancellationToken: cancellationToken);
         }
 
-        public Task<TaskAgent> UpdateAgentUpdateStateAsync(int agentPoolId, int agentId, string currentState)
+        public Task<TaskAgent> UpdateAgentUpdateStateAsync(int agentPoolId, int agentId, string currentState, string trace)
         {
             CheckConnection(RunnerConnectionType.Generic);
-            return _genericTaskAgentClient.UpdateAgentUpdateStateAsync(agentPoolId, agentId, currentState);
+            return _genericTaskAgentClient.UpdateAgentUpdateStateAsync(agentPoolId, agentId, currentState, trace);
-        }
-
-        //-----------------------------------------------------------------
-        // Runner Auth Url
-        //-----------------------------------------------------------------
-        public Task<string> GetRunnerAuthUrlAsync(int runnerPoolId, int runnerId)
-        {
-            CheckConnection(RunnerConnectionType.MessageQueue);
-            return _messageTaskAgentClient.GetAgentAuthUrlAsync(runnerPoolId, runnerId);
-        }
-
-        public Task ReportRunnerAuthUrlErrorAsync(int runnerPoolId, int runnerId, string error)
-        {
-            CheckConnection(RunnerConnectionType.MessageQueue);
-            return _messageTaskAgentClient.ReportAgentAuthUrlMigrationErrorAsync(runnerPoolId, runnerId, error);
         }
     }
 }

src/Runner.Common/Terminal.cs

@@ -164,9 +164,8 @@ namespace GitHub.Runner.Common
             if (!Silent)
             {
                 Console.WriteLine();
-                Console.ForegroundColor = ConsoleColor.White;
-                Console.WriteLine($"# {message}");
                 Console.ResetColor();
+                Console.WriteLine($"# {message}");
                 Console.WriteLine();
             }
         }
@@ -177,9 +176,8 @@ namespace GitHub.Runner.Common
             {
                 Console.ForegroundColor = ConsoleColor.Green;
                 Console.Write("√ ");
-                Console.ForegroundColor = ConsoleColor.White;
-                Console.WriteLine(message);
                 Console.ResetColor();
+                Console.WriteLine(message);
             }
         }
 

src/Runner.Listener/CommandSettings.cs

@@ -29,10 +29,11 @@ namespace GitHub.Runner.Listener
         {
             Constants.Runner.CommandLine.Flags.Check,
             Constants.Runner.CommandLine.Flags.Commit,
+            Constants.Runner.CommandLine.Flags.Ephemeral,
             Constants.Runner.CommandLine.Flags.Help,
+            Constants.Runner.CommandLine.Flags.Once,
             Constants.Runner.CommandLine.Flags.Replace,
             Constants.Runner.CommandLine.Flags.RunAsService,
-            Constants.Runner.CommandLine.Flags.Once,
             Constants.Runner.CommandLine.Flags.Unattended,
             Constants.Runner.CommandLine.Flags.Version
         };
@@ -66,7 +67,9 @@ namespace GitHub.Runner.Listener
         public bool Help => TestFlag(Constants.Runner.CommandLine.Flags.Help);
         public bool Unattended => TestFlag(Constants.Runner.CommandLine.Flags.Unattended);
         public bool Version => TestFlag(Constants.Runner.CommandLine.Flags.Version);
+        public bool Ephemeral => TestFlag(Constants.Runner.CommandLine.Flags.Ephemeral);
 
+        // Keep this around since customers still relies on it
         public bool RunOnce => TestFlag(Constants.Runner.CommandLine.Flags.Once);
 
         // Constructor.
@@ -240,6 +243,7 @@ namespace GitHub.Runner.Listener
                 validator: Validators.ServerUrlValidator);
         }
 
+#if OS_WINDOWS
         public string GetWindowsLogonAccount(string defaultValue, string descriptionMsg)
         {
             return GetArgOrPrompt(
@@ -257,7 +261,7 @@ namespace GitHub.Runner.Listener
                 defaultValue: string.Empty,
                 validator: Validators.NonEmptyValidator);
         }
-
+#endif
         public string GetWork()
         {
             return GetArgOrPrompt(

src/Runner.Listener/Configuration/ConfigurationManager.cs

@@ -22,6 +22,7 @@ namespace GitHub.Runner.Listener.Configuration
         bool IsConfigured();
         Task ConfigureAsync(CommandSettings command);
         Task UnconfigureAsync(CommandSettings command);
+        void DeleteLocalRunnerConfig();
         RunnerSettings LoadSettings();
     }
 
@@ -53,7 +54,7 @@ namespace GitHub.Runner.Listener.Configuration
             Trace.Info(nameof(LoadSettings));
             if (!IsConfigured())
             {
-                throw new InvalidOperationException("Not configured");
+                throw new InvalidOperationException("Not configured. Run config.(sh/cmd) to configure the runner.");
             }
 
             RunnerSettings settings = _store.GetSettings();
@@ -65,18 +66,18 @@ namespace GitHub.Runner.Listener.Configuration
         public async Task ConfigureAsync(CommandSettings command)
         {
             _term.WriteLine();
-            _term.WriteLine("--------------------------------------------------------------------------------", ConsoleColor.White);
+            _term.WriteLine("--------------------------------------------------------------------------------");
-            _term.WriteLine("|        ____ _ _   _   _       _          _        _   _                      |", ConsoleColor.White);
+            _term.WriteLine("|        ____ _ _   _   _       _          _        _   _                      |");
-            _term.WriteLine("|       / ___(_) |_| | | |_   _| |__      / \\   ___| |_(_) ___  _ __  ___      |", ConsoleColor.White);
+            _term.WriteLine("|       / ___(_) |_| | | |_   _| |__      / \\   ___| |_(_) ___  _ __  ___      |");
-            _term.WriteLine("|      | |  _| | __| |_| | | | | '_ \\    / _ \\ / __| __| |/ _ \\| '_ \\/ __|     |", ConsoleColor.White);
+            _term.WriteLine("|      | |  _| | __| |_| | | | | '_ \\    / _ \\ / __| __| |/ _ \\| '_ \\/ __|     |");
-            _term.WriteLine("|      | |_| | | |_|  _  | |_| | |_) |  / ___ \\ (__| |_| | (_) | | | \\__ \\     |", ConsoleColor.White);
+            _term.WriteLine("|      | |_| | | |_|  _  | |_| | |_) |  / ___ \\ (__| |_| | (_) | | | \\__ \\     |");
-            _term.WriteLine("|       \\____|_|\\__|_| |_|\\__,_|_.__/  /_/   \\_\\___|\\__|_|\\___/|_| |_|___/     |", ConsoleColor.White);
+            _term.WriteLine("|       \\____|_|\\__|_| |_|\\__,_|_.__/  /_/   \\_\\___|\\__|_|\\___/|_| |_|___/     |");
-            _term.WriteLine("|                                                                              |", ConsoleColor.White);
+            _term.WriteLine("|                                                                              |");
-            _term.Write("|                       ", ConsoleColor.White);
+            _term.Write("|                       ");
             _term.Write("Self-hosted runner registration", ConsoleColor.Cyan);
-            _term.WriteLine("                        |", ConsoleColor.White);
+            _term.WriteLine("                        |");
-            _term.WriteLine("|                                                                              |", ConsoleColor.White);
+            _term.WriteLine("|                                                                              |");
-            _term.WriteLine("--------------------------------------------------------------------------------", ConsoleColor.White);
+            _term.WriteLine("--------------------------------------------------------------------------------");
 
             Trace.Info(nameof(ConfigureAsync));
             if (IsConfigured())
@@ -117,6 +118,7 @@ namespace GitHub.Runner.Listener.Configuration
                 try
                 {
                     // Determine the service deployment type based on connection data. (Hosted/OnPremises)
+                    // Hosted usually means github.com or localhost, while OnPremises means GHES or GHAE
                     runnerSettings.IsHostedServer = runnerSettings.GitHubUrl == null || UrlUtil.IsHostedServer(new UriBuilder(runnerSettings.GitHubUrl));
 
                     // Warn if the Actions server url and GHES server url has different Host
@@ -165,7 +167,7 @@ namespace GitHub.Runner.Listener.Configuration
             List<TaskAgentPool> agentPools = await _runnerServer.GetAgentPoolsAsync();
             TaskAgentPool defaultPool = agentPools?.Where(x => x.IsInternal).FirstOrDefault();
 
-            if (agentPools?.Where(x => !x.IsHosted).Count() > 1)
+            if (agentPools?.Where(x => !x.IsHosted).Count() > 0)
             {
                 poolName = command.GetRunnerGroupName(defaultPool?.Name);
                 _term.WriteLine();
@@ -186,7 +188,7 @@ namespace GitHub.Runner.Listener.Configuration
             }
             else
             {
-                Trace.Info("Found a self-hosted runner group with id {1} and name {2}", agentPool.Id, agentPool.Name);
+                Trace.Info($"Found a self-hosted runner group with id {agentPool.Id} and name {agentPool.Name}");
                 runnerSettings.PoolId = agentPool.Id;
                 runnerSettings.PoolName = agentPool.Name;
             }
@@ -194,6 +196,7 @@ namespace GitHub.Runner.Listener.Configuration
             TaskAgent agent;
             while (true)
             {
+                runnerSettings.Ephemeral = command.Ephemeral;
                 runnerSettings.AgentName = command.GetRunnerName();
 
                 _term.WriteLine();
@@ -210,7 +213,7 @@ namespace GitHub.Runner.Listener.Configuration
                     if (command.GetReplace())
                     {
                         // Update existing agent with new PublicKey, agent version.
-                        agent = UpdateExistingAgent(agent, publicKey, userLabels);
+                        agent = UpdateExistingAgent(agent, publicKey, userLabels, runnerSettings.Ephemeral);
 
                         try
                         {
@@ -233,7 +236,7 @@ namespace GitHub.Runner.Listener.Configuration
                 else
                 {
                     // Create a new agent.
-                    agent = CreateNewAgent(runnerSettings.AgentName, publicKey, userLabels);
+                    agent = CreateNewAgent(runnerSettings.AgentName, publicKey, userLabels, runnerSettings.Ephemeral);
 
                     try
                     {
@@ -327,6 +330,38 @@ namespace GitHub.Runner.Listener.Configuration
 #endif
         }
 
+        // Delete .runner and .credentials files
+        public void DeleteLocalRunnerConfig()
+        {
+            bool isConfigured = _store.IsConfigured();
+            bool hasCredentials = _store.HasCredentials();
+            //delete credential config files
+            var currentAction = "Removing .credentials";
+            if (hasCredentials)
+            {
+                _store.DeleteCredential();
+                var keyManager = HostContext.GetService<IRSAKeyManager>();
+                keyManager.DeleteKey();
+                _term.WriteSuccessMessage("Removed .credentials");
+            }
+            else
+            {
+                _term.WriteLine("Does not exist. Skipping " + currentAction);
+            }
+
+            //delete settings config file
+            currentAction = "Removing .runner";
+            if (isConfigured)
+            {
+                _store.DeleteSettings();
+                _term.WriteSuccessMessage("Removed .runner");
+            }
+            else
+            {
+                _term.WriteLine("Does not exist. Skipping " + currentAction);
+            }
+        }
+
         public async Task UnconfigureAsync(CommandSettings command)
         {
             string currentAction = string.Empty;
@@ -346,12 +381,9 @@ namespace GitHub.Runner.Listener.Configuration
 
                     _term.WriteLine();
                     _term.WriteSuccessMessage("Runner service removed");
-#elif OS_LINUX
+#else
-                    // unconfig system D service first
+                    // unconfig systemd or osx service first
-                    throw new Exception("Unconfigure service first");
+                    throw new Exception("Uninstall service first");
-#elif OS_OSX
-                    // unconfig osx service first
-                    throw new Exception("Unconfigure service first");
 #endif
                 }
 
@@ -383,7 +415,7 @@ namespace GitHub.Runner.Listener.Configuration
                     // Determine the service deployment type based on connection data. (Hosted/OnPremises)
                     await _runnerServer.ConnectAsync(new Uri(settings.ServerUrl), creds);
 
-                    var agents = await _runnerServer.GetAgentsAsync(settings.PoolId, settings.AgentName);
+                    var agents = await _runnerServer.GetAgentsAsync(settings.AgentName);
                     Trace.Verbose("Returns {0} agents", agents.Count);
                     TaskAgent agent = agents.FirstOrDefault();
                     if (agent == null)
@@ -392,7 +424,7 @@ namespace GitHub.Runner.Listener.Configuration
                     }
                     else
                     {
-                        await _runnerServer.DeleteAgentAsync(settings.PoolId, settings.AgentId);
+                        await _runnerServer.DeleteAgentAsync(settings.AgentId);
 
                         _term.WriteLine();
                         _term.WriteSuccessMessage("Runner removed successfully");
@@ -403,31 +435,7 @@ namespace GitHub.Runner.Listener.Configuration
                     _term.WriteLine("Cannot connect to server, because config files are missing. Skipping removing runner from the server.");
                 }
 
-                //delete credential config files
+                DeleteLocalRunnerConfig();
-                currentAction = "Removing .credentials";
-                if (hasCredentials)
-                {
-                    _store.DeleteCredential();
-                    var keyManager = HostContext.GetService<IRSAKeyManager>();
-                    keyManager.DeleteKey();
-                    _term.WriteSuccessMessage("Removed .credentials");
-                }
-                else
-                {
-                    _term.WriteLine("Does not exist. Skipping " + currentAction);
-                }
-
-                //delete settings config file
-                currentAction = "Removing .runner";
-                if (isConfigured)
-                {
-                    _store.DeleteSettings();
-                    _term.WriteSuccessMessage("Removed .runner");
-                }
-                else
-                {
-                    _term.WriteLine("Does not exist. Skipping " + currentAction);
-                }
             }
             catch (Exception)
             {
@@ -458,7 +466,7 @@ namespace GitHub.Runner.Listener.Configuration
         }
 
 
-        private TaskAgent UpdateExistingAgent(TaskAgent agent, RSAParameters publicKey, ISet<string> userLabels)
+        private TaskAgent UpdateExistingAgent(TaskAgent agent, RSAParameters publicKey, ISet<string> userLabels, bool ephemeral)
         {
             ArgUtil.NotNull(agent, nameof(agent));
             agent.Authorization = new TaskAgentAuthorization
@@ -469,6 +477,8 @@ namespace GitHub.Runner.Listener.Configuration
             // update should replace the existing labels
             agent.Version = BuildConstants.RunnerPackage.Version;
             agent.OSDescription = RuntimeInformation.OSDescription;
+            agent.Ephemeral = ephemeral;
+            agent.MaxParallelism = 1;
 
             agent.Labels.Clear();
 
@@ -484,7 +494,7 @@ namespace GitHub.Runner.Listener.Configuration
             return agent;
         }
 
-        private TaskAgent CreateNewAgent(string agentName, RSAParameters publicKey, ISet<string> userLabels)
+        private TaskAgent CreateNewAgent(string agentName, RSAParameters publicKey, ISet<string> userLabels, bool ephemeral)
         {
             TaskAgent agent = new TaskAgent(agentName)
             {
@@ -495,6 +505,7 @@ namespace GitHub.Runner.Listener.Configuration
                 MaxParallelism = 1,
                 Version = BuildConstants.RunnerPackage.Version,
                 OSDescription = RuntimeInformation.OSDescription,
+                Ephemeral = ephemeral,
             };
 
             agent.Labels.Add(new AgentLabel("self-hosted", LabelType.System));

src/Runner.Listener/Configuration/NativeWindowsServiceHelper.cs

@@ -1,4 +1,5 @@
 #if OS_WINDOWS
+#pragma warning disable CA1416
 using System;
 using System.Collections;
 using System.Collections.Generic;
@@ -87,7 +88,7 @@ namespace GitHub.Runner.Listener.Configuration
 
         public string GetUniqueRunnerGroupName()
         {
-            return RunnerServiceLocalGroupPrefix + IOUtil.GetPathHash(HostContext.GetDirectory(WellKnownDirectory.Bin)).Substring(0, 5);
+            return RunnerServiceLocalGroupPrefix + IOUtil.GetSha256Hash(HostContext.GetDirectory(WellKnownDirectory.Bin)).Substring(0, 5);
         }
 
         public bool LocalGroupExists(string groupName)
@@ -1327,4 +1328,5 @@ namespace GitHub.Runner.Listener.Configuration
         public IntPtr hProfile;
     }
 }
+#pragma warning restore CA1416
 #endif

src/Runner.Listener/Configuration/PromptManager.cs

@@ -85,7 +85,7 @@ namespace GitHub.Runner.Listener.Configuration
             while (true)
             {
                 // Write the message prompt.
-                _terminal.Write($"{description} ", ConsoleColor.White);
+                _terminal.Write($"{description} ");
 
                 if(!string.IsNullOrEmpty(defaultValue))
                 {

src/Runner.Listener/Configuration/Validators.cs

@@ -67,6 +67,8 @@ namespace GitHub.Runner.Listener.Configuration
             return !string.IsNullOrEmpty(value);
         }
 
+#if OS_WINDOWS
+#pragma warning disable CA1416
         public static bool NTAccountValidator(string arg)
         {
             if (string.IsNullOrEmpty(arg) || String.IsNullOrEmpty(arg.TrimStart('.', '\\')))
@@ -87,5 +89,7 @@ namespace GitHub.Runner.Listener.Configuration
 
             return true;
         }
+#pragma warning restore CA1416
+#endif
     }
 }

src/Runner.Listener/Configuration/WindowsServiceControlManager.cs

@@ -1,4 +1,5 @@
 #if OS_WINDOWS
+#pragma warning disable CA1416
 using System;
 using System.IO;
 using System.Linq;
@@ -169,4 +170,5 @@ namespace GitHub.Runner.Listener.Configuration
         }
     }
 }
+#pragma warning restore CA1416
 #endif

src/Runner.Listener/JobDispatcher.cs

@@ -27,24 +27,27 @@ namespace GitHub.Runner.Listener
         Task ShutdownAsync();
     }
 
-    // This implementation of IDobDispatcher is not thread safe.
+    // This implementation of IJobDispatcher is not thread safe.
-    // It is base on the fact that the current design of runner is dequeue
+    // It is based on the fact that the current design of the runner is a dequeue
-    // and process one message from message queue everytime.
+    // and processes one message from the message queue at a time.
-    // In addition, it only execute one job every time, 
+    // In addition, it only executes one job every time, 
-    // and server will not send another job while this one is still running.
+    // and the server will not send another job while this one is still running.
     public sealed class JobDispatcher : RunnerService, IJobDispatcher
     {
         private readonly Lazy<Dictionary<long, TaskResult>> _localRunJobResult = new Lazy<Dictionary<long, TaskResult>>();
         private int _poolId;
-        RunnerSettings _runnerSetting;
+
+        IConfigurationStore _configurationStore;
+
+        RunnerSettings _runnerSettings;
         private static readonly string _workerProcessName = $"Runner.Worker{IOUtil.ExeExtension}";
 
         // this is not thread-safe
         private readonly Queue<Guid> _jobDispatchedQueue = new Queue<Guid>();
         private readonly ConcurrentDictionary<Guid, WorkerDispatcher> _jobInfos = new ConcurrentDictionary<Guid, WorkerDispatcher>();
 
-        //allow up to 30sec for any data to be transmitted over the process channel
+        // allow up to 30sec for any data to be transmitted over the process channel
-        //timeout limit can be overwrite by environment GITHUB_ACTIONS_RUNNER_CHANNEL_TIMEOUT
+        // timeout limit can be overwritten by environment GITHUB_ACTIONS_RUNNER_CHANNEL_TIMEOUT
         private TimeSpan _channelTimeout;
 
         private TaskCompletionSource<bool> _runOnceJobCompleted = new TaskCompletionSource<bool>();
@@ -54,9 +57,9 @@ namespace GitHub.Runner.Listener
             base.Initialize(hostContext);
 
             // get pool id from config
-            var configurationStore = hostContext.GetService<IConfigurationStore>();
+            _configurationStore = hostContext.GetService<IConfigurationStore>();
-            _runnerSetting = configurationStore.GetSettings();
+            _runnerSettings = _configurationStore.GetSettings();
-            _poolId = _runnerSetting.PoolId;
+            _poolId = _runnerSettings.PoolId;
 
             int channelTimeoutSeconds;
             if (!int.TryParse(Environment.GetEnvironmentVariable("GITHUB_ACTIONS_RUNNER_CHANNEL_TIMEOUT") ?? string.Empty, out channelTimeoutSeconds))
@@ -64,7 +67,7 @@ namespace GitHub.Runner.Listener
                 channelTimeoutSeconds = 30;
             }
 
-            // _channelTimeout should in range [30,  300] seconds
+            // _channelTimeout should be in range [30,  300] seconds
             _channelTimeout = TimeSpan.FromSeconds(Math.Min(Math.Max(channelTimeoutSeconds, 30), 300));
             Trace.Info($"Set runner/worker IPC timeout to {_channelTimeout.TotalSeconds} seconds.");
         }
@@ -230,16 +233,27 @@ namespace GitHub.Runner.Listener
                     return;
                 }
 
-                // base on the current design, server will only send one job for a given runner everytime.
+                // based on the current design, server will only send one job for a given runner at a time.
-                // if the runner received a new job request while a previous job request is still running, this typically indicate two situations
+                // if the runner received a new job request while a previous job request is still running, this typically indicates two situations
-                // 1. an runner bug cause server and runner mismatch on the state of the job request, ex. runner not renew jobrequest properly but think it still own the job reqest, however server already abandon the jobrequest.
+                // 1. a runner bug caused a server and runner mismatch on the state of the job request, e.g. the runner didn't renew the jobrequest
-                // 2. a server bug or design change that allow server send more than one job request to an given runner that haven't finish previous job request.
+                //    properly but thinks it still owns the job reqest, however the server has already abandoned the jobrequest.
+                // 2. a server bug or design change that allowed the server to send more than one job request to an given runner that hasn't finished
+                //.   a previous job request.
                 var runnerServer = HostContext.GetService<IRunnerServer>();
                 TaskAgentJobRequest request = null;
                 try
                 {
                     request = await runnerServer.GetAgentRequestAsync(_poolId, jobDispatch.RequestId, CancellationToken.None);
                 }
+                catch (TaskAgentJobNotFoundException ex)
+                {
+                    Trace.Error($"Catch job-not-found exception while checking jobrequest {jobDispatch.JobId} status. Cancel running worker right away.");
+                    Trace.Error(ex);
+                    jobDispatch.WorkerCancellationTokenSource.Cancel();
+                    // make sure worker process exits before we return, otherwise we might leave an orphan worker process behind.
+                    await jobDispatch.WorkerDispatch;
+                    return;
+                }
                 catch (Exception ex)
                 {
                     // we can't even query for the jobrequest from server, something totally busted, stop runner/worker.
@@ -247,7 +261,7 @@ namespace GitHub.Runner.Listener
                     Trace.Error(ex);
 
                     jobDispatch.WorkerCancellationTokenSource.Cancel();
-                    // make sure worker process exit before we rethrow, otherwise we might leave orphan worker process behind.
+                    // make sure the worker process exits before we rethrow, otherwise we might leave orphan worker process behind.
                     await jobDispatch.WorkerDispatch;
 
                     // rethrow original exception
@@ -256,8 +270,8 @@ namespace GitHub.Runner.Listener
 
                 if (request.Result != null)
                 {
-                    // job request has been finished, the server already has result.
+                    // job request has been finished, the server already has the result.
-                    // this means runner is busted since it still running that request.
+                    // this means the runner is busted since it is still running that request.
                     // cancel the zombie worker, run next job request.
                     Trace.Error($"Received job request while previous job {jobDispatch.JobId} still running on worker. Cancel the previous job since the job request have been finished on server side with result: {request.Result.Value}.");
                     jobDispatch.WorkerCancellationTokenSource.Cancel();
@@ -496,7 +510,20 @@ namespace GitHub.Runner.Listener
                                 {
                                     detailInfo = string.Join(Environment.NewLine, workerOutput);
                                     Trace.Info($"Return code {returnCode} indicate worker encounter an unhandled exception or app crash, attach worker stdout/stderr to JobRequest result.");
-                                    await LogWorkerProcessUnhandledException(message, detailInfo);
+
+                                    var jobServer = HostContext.GetService<IJobServer>();
+                                    VssCredentials jobServerCredential = VssUtil.GetVssCredential(systemConnection);
+                                    VssConnection jobConnection = VssUtil.CreateConnection(systemConnection.Url, jobServerCredential);
+                                    await jobServer.ConnectAsync(jobConnection);
+
+                                    await LogWorkerProcessUnhandledException(jobServer, message, detailInfo);
+
+                                    // Go ahead to finish the job with result 'Failed' if the STDERR from worker is System.IO.IOException, since it typically means we are running out of disk space.
+                                    if (detailInfo.Contains(typeof(System.IO.IOException).ToString(), StringComparison.OrdinalIgnoreCase))
+                                    {
+                                        Trace.Info($"Finish job with result 'Failed' due to IOException.");
+                                        await ForceFailJob(jobServer, message);
+                                    }
                                 }
 
                                 TaskResult result = TaskResultUtil.TranslateFromReturnCode(returnCode);
@@ -637,13 +664,15 @@ namespace GitHub.Runner.Listener
                 try
                 {
                     request = await runnerServer.RenewAgentRequestAsync(poolId, requestId, lockToken, orchestrationId, token);
-
                     Trace.Info($"Successfully renew job request {requestId}, job is valid till {request.LockedUntil.Value}");
 
                     if (!firstJobRequestRenewed.Task.IsCompleted)
                     {
                         // fire first renew succeed event.
                         firstJobRequestRenewed.TrySetResult(0);
+
+                        // Update settings if the runner name has been changed server-side
+                        UpdateAgentNameIfNeeded(request.ReservedAgent?.Name);
                     }
 
                     if (encounteringError > 0)
@@ -743,6 +772,27 @@ namespace GitHub.Runner.Listener
             }
         }
 
+        private void UpdateAgentNameIfNeeded(string agentName)
+        {
+            var isNewAgentName = !string.Equals(_runnerSettings.AgentName, agentName, StringComparison.Ordinal);
+            if (!isNewAgentName || string.IsNullOrEmpty(agentName))
+            {
+                return;
+            }
+
+            _runnerSettings.AgentName = agentName;
+            try
+            {
+                _configurationStore.SaveSettings(_runnerSettings);
+            }
+            catch (Exception ex)
+            {
+                Trace.Error("Cannot update the settings file:");
+                Trace.Error(ex);
+            }
+
+        }
+
         // Best effort upload any logs for this job.
         private async Task TryUploadUnfinishedLogs(Pipelines.AgentJobRequestMessage message)
         {
@@ -904,53 +954,16 @@ namespace GitHub.Runner.Listener
         }
 
         // log an error issue to job level timeline record
-        private async Task LogWorkerProcessUnhandledException(Pipelines.AgentJobRequestMessage message, string errorMessage)
+        private async Task LogWorkerProcessUnhandledException(IJobServer jobServer, Pipelines.AgentJobRequestMessage message, string errorMessage)
         {
             try
             {
-                var systemConnection = message.Resources.Endpoints.SingleOrDefault(x => string.Equals(x.Name, WellKnownServiceEndpointNames.SystemVssConnection));
-                ArgUtil.NotNull(systemConnection, nameof(systemConnection));
-
-                var jobServer = HostContext.GetService<IJobServer>();
-                VssCredentials jobServerCredential = VssUtil.GetVssCredential(systemConnection);
-                VssConnection jobConnection = VssUtil.CreateConnection(systemConnection.Url, jobServerCredential);
-
-                /* Below is the legacy 'OnPremises' code that is currently unused by the runner
-                   ToDo: re-implement code as appropriate once GHES support is added.
-                // Make sure SystemConnection Url match Config Url base for OnPremises server	
-                if (!message.Variables.ContainsKey(Constants.Variables.System.ServerType) ||	
-                    string.Equals(message.Variables[Constants.Variables.System.ServerType]?.Value, "OnPremises", StringComparison.OrdinalIgnoreCase))	
-                {	
-                    try	
-                    {	
-                        Uri result = null;	
-                        Uri configUri = new Uri(_runnerSetting.ServerUrl);	
-                        if (Uri.TryCreate(new Uri(configUri.GetComponents(UriComponents.SchemeAndServer, UriFormat.Unescaped)), jobServerUrl.PathAndQuery, out result))	
-                        {	
-                            //replace the schema and host portion of messageUri with the host from the	
-                            //server URI (which was set at config time)	
-                            jobServerUrl = result;	
-                        }	
-                    }	
-                    catch (InvalidOperationException ex)	
-                    {	
-                        //cannot parse the Uri - not a fatal error	
-                        Trace.Error(ex);	
-                    }	
-                    catch (UriFormatException ex)	
-                    {	
-                        //cannot parse the Uri - not a fatal error	
-                        Trace.Error(ex);	
-                    }	
-                } */
-
-                await jobServer.ConnectAsync(jobConnection);
-
                 var timeline = await jobServer.GetTimelineAsync(message.Plan.ScopeIdentifier, message.Plan.PlanType, message.Plan.PlanId, message.Timeline.Id, CancellationToken.None);
-
                 ArgUtil.NotNull(timeline, nameof(timeline));
+
                 TimelineRecord jobRecord = timeline.Records.FirstOrDefault(x => x.Id == message.JobId && x.RecordType == "Job");
                 ArgUtil.NotNull(jobRecord, nameof(jobRecord));
+
                 var unhandledExceptionIssue = new Issue() { Type = IssueType.Error, Message = errorMessage };
                 unhandledExceptionIssue.Data[Constants.Runner.InternalTelemetryIssueDataKey] = Constants.Runner.WorkerCrash;
                 jobRecord.ErrorCount++;
@@ -964,6 +977,21 @@ namespace GitHub.Runner.Listener
             }
         }
 
+        // raise job completed event to fail the job.
+        private async Task ForceFailJob(IJobServer jobServer, Pipelines.AgentJobRequestMessage message)
+        {
+            try
+            {
+                var jobCompletedEvent = new JobCompletedEvent(message.RequestId, message.JobId, TaskResult.Failed);
+                await jobServer.RaisePlanEventAsync<JobCompletedEvent>(message.Plan.ScopeIdentifier, message.Plan.PlanType, message.Plan.PlanId, jobCompletedEvent, CancellationToken.None);
+            }
+            catch (Exception ex)
+            {
+                Trace.Error("Fail to raise JobCompletedEvent back to service.");
+                Trace.Error(ex);
+            }
+        }
+
         private class WorkerDispatcher : IDisposable
         {
             public long RequestId { get; }

src/Runner.Listener/Runner.Listener.csproj

@@ -1,15 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <OutputType>Exe</OutputType>
     <RuntimeIdentifiers>win-x64;win-x86;linux-x64;linux-arm64;linux-arm;osx-x64</RuntimeIdentifiers>
     <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
-    <AssetTargetFallback>portable-net45+win8</AssetTargetFallback>
     <NoWarn>NU1701;NU1603</NoWarn>
     <Version>$(Version)</Version>
-    <TieredCompilationQuickJit>true</TieredCompilationQuickJit>
+    <PublishReadyToRunComposite>true</PublishReadyToRunComposite>
-    <PublishReadyToRun>true</PublishReadyToRun>
   </PropertyGroup>
 
   <ItemGroup>
@@ -26,6 +24,12 @@
     <PackageReference Include="System.ServiceProcess.ServiceController" Version="4.4.0" />
   </ItemGroup>
 
+  <ItemGroup>
+    <EmbeddedResource Include="..\Misc\runnercoreassets">
+      <LogicalName>GitHub.Runner.Listener.runnercoreassets</LogicalName>
+    </EmbeddedResource>
+  </ItemGroup>
+
   <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>

src/Runner.Listener/Runner.cs

@@ -214,7 +214,7 @@ namespace GitHub.Runner.Listener
                     var startupTypeAsString = command.GetStartupType();
                     if (string.IsNullOrEmpty(startupTypeAsString) && configuredAsService)
                     {
-                        // We need try our best to make the startup type accurate 
+                        // We need try our best to make the startup type accurate
                         // The problem is coming from runner autoupgrade, which result an old version service host binary but a newer version runner binary
                         // At that time the servicehost won't pass --startuptype to Runner.Listener while the runner is actually running as service.
                         // We will guess the startup type only when the runner is configured as service and the guess will based on whether STDOUT/STDERR/STDIN been redirect or not
@@ -233,8 +233,14 @@ namespace GitHub.Runner.Listener
                     Trace.Info($"Set runner startup type - {startType}");
                     HostContext.StartupType = startType;
 
+                    if (command.RunOnce)
+                    {
+                        _term.WriteLine("Warning: '--once' is going to be deprecated in the future, please consider using '--ephemeral' during runner registration.", ConsoleColor.Yellow);
+                        _term.WriteLine("https://docs.github.com/en/actions/hosting-your-own-runners/autoscaling-with-self-hosted-runners#using-ephemeral-runners-for-autoscaling", ConsoleColor.Yellow);
+                    }
+
                     // Run the runner interactively or as service
-                    return await RunAsync(settings, command.RunOnce);
+                    return await RunAsync(settings, command.RunOnce || settings.Ephemeral);
                 }
                 else
                 {
@@ -306,10 +312,15 @@ namespace GitHub.Runner.Listener
                 }
 
                 HostContext.WritePerfCounter("SessionCreated");
+
+                _term.WriteLine($"Current runner version: '{BuildConstants.RunnerPackage.Version}'");
                 _term.WriteLine($"{DateTime.UtcNow:u}: Listening for Jobs");
 
                 IJobDispatcher jobDispatcher = null;
                 CancellationTokenSource messageQueueLoopTokenSource = CancellationTokenSource.CreateLinkedTokenSource(HostContext.RunnerShutdownToken);
+                
+                // Should we try to cleanup ephemeral runners
+                bool runOnceJobCompleted = false;
                 try
                 {
                     var notification = HostContext.GetService<IJobNotification>();
@@ -371,6 +382,7 @@ namespace GitHub.Runner.Listener
                                 Task completeTask = await Task.WhenAny(getNextMessage, jobDispatcher.RunOnceJobCompleted.Task);
                                 if (completeTask == jobDispatcher.RunOnceJobCompleted.Task)
                                 {
+                                    runOnceJobCompleted = true;
                                     Trace.Info("Job has finished at backend, the runner will exit since it is running under onetime use mode.");
                                     Trace.Info("Stop message queue looping.");
                                     messageQueueLoopTokenSource.Cancel();
@@ -466,10 +478,24 @@ namespace GitHub.Runner.Listener
                         await jobDispatcher.ShutdownAsync();
                     }
 
-                    //TODO: make sure we don't mask more important exception
+                    try
-                    await _listener.DeleteSessionAsync();
+                    {
+                        await _listener.DeleteSessionAsync();
+                    }
+                    catch (Exception ex) when (runOnce)
+                    {
+                        // ignore exception during delete session for ephemeral runner since the runner might already be deleted from the server side
+                        // and the delete session call will ends up with 401.
+                        Trace.Info($"Ignore any exception during DeleteSession for an ephemeral runner. {ex}");
+                    }
 
                     messageQueueLoopTokenSource.Dispose();
+
+                    if (settings.Ephemeral && runOnceJobCompleted)
+                    {
+                        var configManager = HostContext.GetService<IConfigurationManager>();
+                        configManager.DeleteLocalRunnerConfig();
+                    }
                 }
             }
             catch (TaskAgentAccessTokenExpiredException)
@@ -512,7 +538,9 @@ Config Options:
  --labels string        Extra labels in addition to the default: 'self-hosted,{Constants.Runner.Platform},{Constants.Runner.PlatformArchitecture}'
  --work string          Relative runner work directory (default {Constants.Path.WorkDirectory})
  --replace              Replace any existing runner with the same name (default false)
- --pat                  GitHub personal access token used for checking network connectivity when executing `.{separator}run.{ext} --check`");
+ --pat                  GitHub personal access token used for checking network connectivity when executing `.{separator}run.{ext} --check`
+ --ephemeral            Configure the runner to only take one job and then let the service un-configure the runner after the job finishes (default false)");
+
 #if OS_WINDOWS
     _term.WriteLine($@" --runasservice   Run the runner as a service");
     _term.WriteLine($@" --windowslogonaccount string   Account to run the service as. Requires runasservice");

src/Runner.Listener/SelfUpdater.cs

@@ -13,6 +13,9 @@ using GitHub.Services.WebApi;
 using GitHub.Services.Common;
 using GitHub.Runner.Common;
 using GitHub.Runner.Sdk;
+using System.Text;
+using System.Collections.Generic;
+using System.Reflection;
 
 namespace GitHub.Runner.Listener
 {
@@ -33,6 +36,7 @@ namespace GitHub.Runner.Listener
         private IRunnerServer _runnerServer;
         private int _poolId;
         private int _agentId;
+        private readonly List<string> _updateTrace = new List<string>();
 
         public bool Busy { get; private set; }
 
@@ -53,6 +57,8 @@ namespace GitHub.Runner.Listener
             Busy = true;
             try
             {
+                var totalUpdateTime = Stopwatch.StartNew();
+
                 if (!await UpdateNeeded(updateMessage.TargetVersion, token))
                 {
                     Trace.Info($"Can't find available update package.");
@@ -60,6 +66,7 @@ namespace GitHub.Runner.Listener
                 }
 
                 Trace.Info($"An update is available.");
+                _updateTrace.Add($"RunnerPlatform: {_targetPackage.Platform}");
 
                 // Print console line that warn user not shutdown runner.
                 await UpdateRunnerUpdateStateAsync("Runner update in progress, do not shutdown runner.");
@@ -74,11 +81,14 @@ namespace GitHub.Runner.Listener
                 await jobDispatcher.WaitAsync(token);
                 Trace.Info($"All running job has exited.");
 
+                // We need to keep runner backup around for macOS until we fixed https://github.com/actions/runner/issues/743
                 // delete runner backup
+                var stopWatch = Stopwatch.StartNew();
                 DeletePreviousVersionRunnerBackup(token);
                 Trace.Info($"Delete old version runner backup.");
-
+                stopWatch.Stop();
                 // generate update script from template
+                _updateTrace.Add($"DeleteRunnerBackupTime: {stopWatch.ElapsedMilliseconds}ms");
                 await UpdateRunnerUpdateStateAsync("Generate and execute update script.");
 
                 string updateScript = GenerateUpdateScript(restartInteractiveRunner);
@@ -96,12 +106,21 @@ namespace GitHub.Runner.Listener
                 invokeScript.Start();
                 Trace.Info($"Update script start running");
 
-                await UpdateRunnerUpdateStateAsync("Runner will exit shortly for update, should back online within 10 seconds.");
+                totalUpdateTime.Stop();
+
+                _updateTrace.Add($"TotalUpdateTime: {totalUpdateTime.ElapsedMilliseconds}ms");
+                await UpdateRunnerUpdateStateAsync("Runner will exit shortly for update, should be back online within 10 seconds.");
 
                 return true;
             }
+            catch (Exception ex)
+            {
+                _updateTrace.Add(ex.ToString());
+                throw;
+            }
             finally
             {
+                await UpdateRunnerUpdateStateAsync("Runner update process finished.");
                 Busy = false;
             }
         }
@@ -156,171 +175,23 @@ namespace GitHub.Runner.Listener
             IOUtil.DeleteDirectory(latestRunnerDirectory, token);
             Directory.CreateDirectory(latestRunnerDirectory);
 
-            int runnerSuffix = 1;
             string archiveFile = null;
-            bool downloadSucceeded = false;
+            var packageDownloadUrl = _targetPackage.DownloadUrl;
+            var packageHashValue = _targetPackage.HashValue;
+            _updateTrace.Add($"DownloadUrl: {packageDownloadUrl}");
 
             try
             {
-                // Download the runner, using multiple attempts in order to be resilient against any networking/CDN issues
+                archiveFile = await DownLoadRunner(latestRunnerDirectory, packageDownloadUrl, packageHashValue, token);
-                for (int attempt = 1; attempt <= Constants.RunnerDownloadRetryMaxAttempts; attempt++)
+
+                if (string.IsNullOrEmpty(archiveFile))
                 {
-                    // Generate an available package name, and do our best effort to clean up stale local zip files
+                    throw new TaskCanceledException($"Runner package '{packageDownloadUrl}' failed after {Constants.RunnerDownloadRetryMaxAttempts} download attempts");
-                    while (true)
-                    {
-                        if (_targetPackage.Platform.StartsWith("win"))
-                        {
-                            archiveFile = Path.Combine(latestRunnerDirectory, $"runner{runnerSuffix}.zip");
-                        }
-                        else
-                        {
-                            archiveFile = Path.Combine(latestRunnerDirectory, $"runner{runnerSuffix}.tar.gz");
-                        }
-
-                        try
-                        {
-                            // delete .zip file
-                            if (!string.IsNullOrEmpty(archiveFile) && File.Exists(archiveFile))
-                            {
-                                Trace.Verbose("Deleting latest runner package zip '{0}'", archiveFile);
-                                IOUtil.DeleteFile(archiveFile);
-                            }
-
-                            break;
-                        }
-                        catch (Exception ex)
-                        {
-                            // couldn't delete the file for whatever reason, so generate another name
-                            Trace.Warning("Failed to delete runner package zip '{0}'. Exception: {1}", archiveFile, ex);
-                            runnerSuffix++;
-                        }
-                    }
-
-                    // Allow a 15-minute package download timeout, which is good enough to update the runner from a 1 Mbit/s ADSL connection.
-                    if (!int.TryParse(Environment.GetEnvironmentVariable("GITHUB_ACTIONS_RUNNER_DOWNLOAD_TIMEOUT") ?? string.Empty, out int timeoutSeconds))
-                    {
-                        timeoutSeconds = 15 * 60;
-                    }
-
-                    Trace.Info($"Attempt {attempt}: save latest runner into {archiveFile}.");
-
-                    using (var downloadTimeout = new CancellationTokenSource(TimeSpan.FromSeconds(timeoutSeconds)))
-                    using (var downloadCts = CancellationTokenSource.CreateLinkedTokenSource(downloadTimeout.Token, token))
-                    {
-                        try
-                        {
-                            Trace.Info($"Download runner: begin download");
-
-                            //open zip stream in async mode
-                            using (HttpClient httpClient = new HttpClient(HostContext.CreateHttpClientHandler()))
-                            {
-                                if (!string.IsNullOrEmpty(_targetPackage.Token))
-                                {
-                                    Trace.Info($"Adding authorization token ({_targetPackage.Token.Length} chars)");
-                                    httpClient.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", _targetPackage.Token);
-                                }
-
-                                Trace.Info($"Downloading {_targetPackage.DownloadUrl}");
-
-                                using (FileStream fs = new FileStream(archiveFile, FileMode.Create, FileAccess.Write, FileShare.None, bufferSize: 4096, useAsync: true))
-                                using (Stream result = await httpClient.GetStreamAsync(_targetPackage.DownloadUrl))
-                                {
-                                    //81920 is the default used by System.IO.Stream.CopyTo and is under the large object heap threshold (85k). 
-                                    await result.CopyToAsync(fs, 81920, downloadCts.Token);
-                                    await fs.FlushAsync(downloadCts.Token);
-                                }
-                            }
-
-                            Trace.Info($"Download runner: finished download");
-                            downloadSucceeded = true;
-                            break;
-                        }
-                        catch (OperationCanceledException) when (token.IsCancellationRequested)
-                        {
-                            Trace.Info($"Runner download has been canceled.");
-                            throw;
-                        }
-                        catch (Exception ex)
-                        {
-                            if (downloadCts.Token.IsCancellationRequested)
-                            {
-                                Trace.Warning($"Runner download has timed out after {timeoutSeconds} seconds");
-                            }
-
-                            Trace.Warning($"Failed to get package '{archiveFile}' from '{_targetPackage.DownloadUrl}'. Exception {ex}");
-                        }
-                    }
                 }
 
-                if (!downloadSucceeded)
+                await ValidateRunnerHash(archiveFile, packageHashValue);
-                {
-                    throw new TaskCanceledException($"Runner package '{archiveFile}' failed after {Constants.RunnerDownloadRetryMaxAttempts} download attempts");
-                }
 
-                // If we got this far, we know that we've successfully downloaded the runner package
+                await ExtractRunnerPackage(archiveFile, latestRunnerDirectory, token);
-                // Validate Hash Matches if it is provided
-                using (FileStream stream = File.OpenRead(archiveFile))
-                {
-                    if (!String.IsNullOrEmpty(_targetPackage.HashValue))
-                    {
-                        using (SHA256 sha256 = SHA256.Create())
-                        {
-                            byte[] srcHashBytes = await sha256.ComputeHashAsync(stream);
-                            var hash = PrimitiveExtensions.ConvertToHexString(srcHashBytes);
-                            if (hash != _targetPackage.HashValue)
-                            {
-                                // Hash did not match, we can't recover from this, just throw
-                                throw new Exception($"Computed runner hash {hash} did not match expected Runner Hash {_targetPackage.HashValue} for {_targetPackage.Filename}");
-                            }
-                            Trace.Info($"Validated Runner Hash matches {_targetPackage.Filename} : {_targetPackage.HashValue}");
-                        }
-                    }
-                }
-                if (archiveFile.EndsWith(".zip", StringComparison.OrdinalIgnoreCase))
-                {
-                    ZipFile.ExtractToDirectory(archiveFile, latestRunnerDirectory);
-                }
-                else if (archiveFile.EndsWith(".tar.gz", StringComparison.OrdinalIgnoreCase))
-                {
-                    string tar = WhichUtil.Which("tar", trace: Trace);
-
-                    if (string.IsNullOrEmpty(tar))
-                    {
-                        throw new NotSupportedException($"tar -xzf");
-                    }
-
-                    // tar -xzf
-                    using (var processInvoker = HostContext.CreateService<IProcessInvoker>())
-                    {
-                        processInvoker.OutputDataReceived += new EventHandler<ProcessDataReceivedEventArgs>((sender, args) =>
-                        {
-                            if (!string.IsNullOrEmpty(args.Data))
-                            {
-                                Trace.Info(args.Data);
-                            }
-                        });
-
-                        processInvoker.ErrorDataReceived += new EventHandler<ProcessDataReceivedEventArgs>((sender, args) =>
-                        {
-                            if (!string.IsNullOrEmpty(args.Data))
-                            {
-                                Trace.Error(args.Data);
-                            }
-                        });
-
-                        int exitCode = await processInvoker.ExecuteAsync(latestRunnerDirectory, tar, $"-xzf \"{archiveFile}\"", null, token);
-                        if (exitCode != 0)
-                        {
-                            throw new NotSupportedException($"Can't use 'tar -xzf' extract archive file: {archiveFile}. return code: {exitCode}.");
-                        }
-                    }
-                }
-                else
-                {
-                    throw new NotSupportedException($"{archiveFile}");
-                }
-
-                Trace.Info($"Finished getting latest runner package at: {latestRunnerDirectory}.");
             }
             finally
             {
@@ -340,6 +211,204 @@ namespace GitHub.Runner.Listener
                 }
             }
 
+            await CopyLatestRunnerToRoot(latestRunnerDirectory, token);
+        }
+
+        private async Task<string> DownLoadRunner(string downloadDirectory, string packageDownloadUrl, string packageHashValue, CancellationToken token)
+        {
+            var stopWatch = Stopwatch.StartNew();
+            int runnerSuffix = 1;
+            string archiveFile = null;
+            bool downloadSucceeded = false;
+
+            // Download the runner, using multiple attempts in order to be resilient against any networking/CDN issues
+            for (int attempt = 1; attempt <= Constants.RunnerDownloadRetryMaxAttempts; attempt++)
+            {
+                // Generate an available package name, and do our best effort to clean up stale local zip files
+                while (true)
+                {
+                    if (_targetPackage.Platform.StartsWith("win"))
+                    {
+                        archiveFile = Path.Combine(downloadDirectory, $"runner{runnerSuffix}.zip");
+                    }
+                    else
+                    {
+                        archiveFile = Path.Combine(downloadDirectory, $"runner{runnerSuffix}.tar.gz");
+                    }
+
+                    try
+                    {
+                        // delete .zip file
+                        if (!string.IsNullOrEmpty(archiveFile) && File.Exists(archiveFile))
+                        {
+                            Trace.Verbose("Deleting latest runner package zip '{0}'", archiveFile);
+                            IOUtil.DeleteFile(archiveFile);
+                        }
+
+                        break;
+                    }
+                    catch (Exception ex)
+                    {
+                        // couldn't delete the file for whatever reason, so generate another name
+                        Trace.Warning("Failed to delete runner package zip '{0}'. Exception: {1}", archiveFile, ex);
+                        runnerSuffix++;
+                    }
+                }
+
+                // Allow a 15-minute package download timeout, which is good enough to update the runner from a 1 Mbit/s ADSL connection.
+                if (!int.TryParse(Environment.GetEnvironmentVariable("GITHUB_ACTIONS_RUNNER_DOWNLOAD_TIMEOUT") ?? string.Empty, out int timeoutSeconds))
+                {
+                    timeoutSeconds = 15 * 60;
+                }
+
+                Trace.Info($"Attempt {attempt}: save latest runner into {archiveFile}.");
+
+                using (var downloadTimeout = new CancellationTokenSource(TimeSpan.FromSeconds(timeoutSeconds)))
+                using (var downloadCts = CancellationTokenSource.CreateLinkedTokenSource(downloadTimeout.Token, token))
+                {
+                    try
+                    {
+                        Trace.Info($"Download runner: begin download");
+                        long downloadSize = 0;
+
+                        //open zip stream in async mode
+                        using (HttpClient httpClient = new HttpClient(HostContext.CreateHttpClientHandler()))
+                        {
+                            if (!string.IsNullOrEmpty(_targetPackage.Token))
+                            {
+                                Trace.Info($"Adding authorization token ({_targetPackage.Token.Length} chars)");
+                                httpClient.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", _targetPackage.Token);
+                            }
+
+                            Trace.Info($"Downloading {packageDownloadUrl}");
+
+                            using (FileStream fs = new FileStream(archiveFile, FileMode.Create, FileAccess.Write, FileShare.None, bufferSize: 4096, useAsync: true))
+                            using (Stream result = await httpClient.GetStreamAsync(packageDownloadUrl))
+                            {
+                                //81920 is the default used by System.IO.Stream.CopyTo and is under the large object heap threshold (85k).
+                                await result.CopyToAsync(fs, 81920, downloadCts.Token);
+                                await fs.FlushAsync(downloadCts.Token);
+                                downloadSize = fs.Length;
+                            }
+                        }
+
+                        Trace.Info($"Download runner: finished download");
+                        downloadSucceeded = true;
+                        stopWatch.Stop();
+                        _updateTrace.Add($"PackageDownloadTime: {stopWatch.ElapsedMilliseconds}ms");
+                        _updateTrace.Add($"Attempts: {attempt}");
+                        _updateTrace.Add($"PackageSize: {downloadSize / 1024 / 1024}MB");
+                        break;
+                    }
+                    catch (OperationCanceledException) when (token.IsCancellationRequested)
+                    {
+                        Trace.Info($"Runner download has been canceled.");
+                        throw;
+                    }
+                    catch (Exception ex)
+                    {
+                        if (downloadCts.Token.IsCancellationRequested)
+                        {
+                            Trace.Warning($"Runner download has timed out after {timeoutSeconds} seconds");
+                        }
+
+                        Trace.Warning($"Failed to get package '{archiveFile}' from '{packageDownloadUrl}'. Exception {ex}");
+                    }
+                }
+            }
+
+            if (downloadSucceeded)
+            {
+                return archiveFile;
+            }
+            else
+            {
+                return null;
+            }
+        }
+
+        private async Task ValidateRunnerHash(string archiveFile, string packageHashValue)
+        {
+            var stopWatch = Stopwatch.StartNew();
+            // Validate Hash Matches if it is provided
+            using (FileStream stream = File.OpenRead(archiveFile))
+            {
+                if (!string.IsNullOrEmpty(packageHashValue))
+                {
+                    using (SHA256 sha256 = SHA256.Create())
+                    {
+                        byte[] srcHashBytes = await sha256.ComputeHashAsync(stream);
+                        var hash = PrimitiveExtensions.ConvertToHexString(srcHashBytes);
+                        if (hash != packageHashValue)
+                        {
+                            // Hash did not match, we can't recover from this, just throw
+                            throw new Exception($"Computed runner hash {hash} did not match expected Runner Hash {packageHashValue} for {_targetPackage.Filename}");
+                        }
+
+                        stopWatch.Stop();
+                        Trace.Info($"Validated Runner Hash matches {_targetPackage.Filename} : {packageHashValue}");
+                        _updateTrace.Add($"ValidateHashTime: {stopWatch.ElapsedMilliseconds}ms");
+                    }
+                }
+            }
+        }
+
+        private async Task ExtractRunnerPackage(string archiveFile, string extractDirectory, CancellationToken token)
+        {
+            var stopWatch = Stopwatch.StartNew();
+
+            if (archiveFile.EndsWith(".zip", StringComparison.OrdinalIgnoreCase))
+            {
+                ZipFile.ExtractToDirectory(archiveFile, extractDirectory);
+            }
+            else if (archiveFile.EndsWith(".tar.gz", StringComparison.OrdinalIgnoreCase))
+            {
+                string tar = WhichUtil.Which("tar", trace: Trace);
+
+                if (string.IsNullOrEmpty(tar))
+                {
+                    throw new NotSupportedException($"tar -xzf");
+                }
+
+                // tar -xzf
+                using (var processInvoker = HostContext.CreateService<IProcessInvoker>())
+                {
+                    processInvoker.OutputDataReceived += new EventHandler<ProcessDataReceivedEventArgs>((sender, args) =>
+                    {
+                        if (!string.IsNullOrEmpty(args.Data))
+                        {
+                            Trace.Info(args.Data);
+                        }
+                    });
+
+                    processInvoker.ErrorDataReceived += new EventHandler<ProcessDataReceivedEventArgs>((sender, args) =>
+                    {
+                        if (!string.IsNullOrEmpty(args.Data))
+                        {
+                            Trace.Error(args.Data);
+                        }
+                    });
+
+                    int exitCode = await processInvoker.ExecuteAsync(extractDirectory, tar, $"-xzf \"{archiveFile}\"", null, token);
+                    if (exitCode != 0)
+                    {
+                        throw new NotSupportedException($"Can't use 'tar -xzf' extract archive file: {archiveFile}. return code: {exitCode}.");
+                    }
+                }
+            }
+            else
+            {
+                throw new NotSupportedException($"{archiveFile}");
+            }
+
+            stopWatch.Stop();
+            Trace.Info($"Finished getting latest runner package at: {extractDirectory}.");
+            _updateTrace.Add($"PackageExtractTime: {stopWatch.ElapsedMilliseconds}ms");
+        }
+
+        private Task CopyLatestRunnerToRoot(string latestRunnerDirectory, CancellationToken token)
+        {
+            var stopWatch = Stopwatch.StartNew();
             // copy latest runner into runner root folder
             // copy bin from _work/_update -> bin.version under root
             string binVersionDir = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), $"{Constants.Path.BinDirectory}.{_targetPackage.Version}");
@@ -357,9 +426,18 @@ namespace GitHub.Runner.Listener
             Trace.Info($"Copy any remaining .sh/.cmd files into runner root.");
             foreach (FileInfo file in new DirectoryInfo(latestRunnerDirectory).GetFiles() ?? new FileInfo[0])
             {
-                // Copy and replace the file.
+                string destination = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), file.Name);
-                file.CopyTo(Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), file.Name), true);
+
+                // Removing the file instead of just trying to overwrite it works around permissions issues on linux.
+                // https://github.com/actions/runner/issues/981
+                Trace.Info($"Copy {file.FullName} to {destination}");
+                IOUtil.DeleteFile(destination);
+                file.CopyTo(destination, true);
             }
+
+            stopWatch.Stop();
+            _updateTrace.Add($"CopyRunnerToRootTime: {stopWatch.ElapsedMilliseconds}ms");
+            return Task.CompletedTask;
         }
 
         private void DeletePreviousVersionRunnerBackup(CancellationToken token)
@@ -483,9 +561,18 @@ namespace GitHub.Runner.Listener
         {
             _terminal.WriteLine(currentState);
 
+            if (_updateTrace.Count > 0)
+            {
+                foreach (var trace in _updateTrace)
+                {
+                    Trace.Info(trace);
+                }
+            }
+
             try
             {
-                await _runnerServer.UpdateAgentUpdateStateAsync(_poolId, _agentId, currentState);
+                await _runnerServer.UpdateAgentUpdateStateAsync(_poolId, _agentId, currentState, string.Join(Environment.NewLine, _updateTrace));
+                _updateTrace.Clear();
             }
             catch (VssResourceNotFoundException)
             {

src/Runner.PluginHost/Runner.PluginHost.csproj

@@ -1,15 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <OutputType>Exe</OutputType>
     <RuntimeIdentifiers>win-x64;win-x86;linux-x64;linux-arm64;linux-arm;osx-x64</RuntimeIdentifiers>
     <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
-    <AssetTargetFallback>portable-net45+win8</AssetTargetFallback>
     <NoWarn>NU1701;NU1603</NoWarn>
     <Version>$(Version)</Version>
-    <TieredCompilationQuickJit>true</TieredCompilationQuickJit>
+    <PublishReadyToRunComposite>true</PublishReadyToRunComposite>
-    <PublishReadyToRun>true</PublishReadyToRun>
   </PropertyGroup>
 
   <ItemGroup>

src/Runner.Plugins/Artifact/FileContainerServer.cs

@@ -444,7 +444,7 @@ namespace GitHub.Runner.Plugins.Artifact
                 {
                     // We should never
                     context.Error($"Error '{ex.Message}' when downloading file '{fileToDownload}'. (Downloader {downloaderId})");
-                    throw ex;
+                    throw;
                 }
             }
 
@@ -528,7 +528,7 @@ namespace GitHub.Runner.Plugins.Artifact
                 catch (Exception ex)
                 {
                     context.Output($"File error '{ex.Message}' when uploading file '{fileToUpload}'.");
-                    throw ex;
+                    throw;
                 }
             }
 

src/Runner.Plugins/Runner.Plugins.csproj

@@ -1,14 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <OutputType>Library</OutputType>
     <RuntimeIdentifiers>win-x64;win-x86;linux-x64;linux-arm64;linux-arm;osx-x64</RuntimeIdentifiers>
     <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
-    <AssetTargetFallback>portable-net45+win8</AssetTargetFallback>
     <NoWarn>NU1701;NU1603</NoWarn>
     <Version>$(Version)</Version>
-    <TieredCompilationQuickJit>true</TieredCompilationQuickJit>
   </PropertyGroup>
 
   <ItemGroup>

src/Runner.Sdk/BuildConstants.cs

@@ -0,0 +1,19 @@
+namespace GitHub.Runner.Sdk
+{
+    /***
+     * WARNING: This file is automatically regenerated on layout so the runner can provide version/commit info (do not manually edit it).
+     */
+    public static class BuildConstants
+    {
+        public static class Source
+        {
+            public static readonly string CommitHash = "N/A";
+        }
+
+        public static class RunnerPackage
+        {
+            public static readonly string PackageName = "N/A";
+            public static readonly string Version = "0";
+        }
+    }
+}

src/Runner.Sdk/Runner.Sdk.csproj

@@ -1,14 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <OutputType>Library</OutputType>
     <RuntimeIdentifiers>win-x64;win-x86;linux-x64;linux-arm64;linux-arm;osx-x64</RuntimeIdentifiers>
     <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
-    <AssetTargetFallback>portable-net45+win8</AssetTargetFallback>
     <NoWarn>NU1701;NU1603</NoWarn>
     <Version>$(Version)</Version>
-    <TieredCompilationQuickJit>true</TieredCompilationQuickJit>
   </PropertyGroup>
   
   <ItemGroup>

src/Runner.Sdk/Util/IOUtil.cs

@@ -47,7 +47,7 @@ namespace GitHub.Runner.Sdk
             return StringUtil.ConvertFromJson<T>(json);
         }
 
-        public static string GetPathHash(string path)
+        public static string GetSha256Hash(string path)
         {
             string hashString = path.ToLowerInvariant();
             using (SHA256 sha256hash = SHA256.Create())

src/Runner.Sdk/Util/WhichUtil.cs

@@ -115,11 +115,15 @@ namespace GitHub.Runner.Sdk
                 }
             }
 
-            trace?.Info("Not found.");
+#if OS_WINDOWS
+            trace?.Info($"{command}: command not found. Make sure '{command}' is installed and its location included in the 'Path' environment variable.");
+#else
+            trace?.Info($"{command}: command not found. Make sure '{command}' is installed and its location included in the 'PATH' environment variable.");
+#endif
             if (require)
             {
                 throw new FileNotFoundException(
-                    message: $"File not found: '{command}'",
+                    message: $"{command}: command not found",
                     fileName: command);
             }
 

src/Runner.Worker/ActionCommandManager.cs

@@ -1,7 +1,5 @@
-using GitHub.DistributedTask.Pipelines;
+using GitHub.DistributedTask.Pipelines.ContextData;
-using GitHub.DistributedTask.Pipelines.ContextData;
 using GitHub.DistributedTask.WebApi;
-using GitHub.Runner.Common.Util;
 using GitHub.Runner.Worker.Container;
 using System;
 using System.Collections.Generic;
@@ -75,11 +73,19 @@ namespace GitHub.Runner.Worker
                 return false;
             }
 
-            // process action command in serialize order.
+            if (!ActionCommandManager.EnhancedAnnotationsEnabled(context) && actionCommand.Command == "notice")
+            {
+                context.Debug($"Enhanced Annotations not enabled on the server: 'notice' command will not be processed.");
+                return false;
+            }
+
+            // Serialize order
             lock (_commandSerializeLock)
             {
+                // Currently stopped
                 if (_stopProcessCommand)
                 {
+                    // Resume token
                     if (!string.IsNullOrEmpty(_stopToken) &&
                              string.Equals(actionCommand.Command, _stopToken, StringComparison.OrdinalIgnoreCase))
                     {
@@ -96,17 +102,27 @@ namespace GitHub.Runner.Worker
                         return false;
                     }
                 }
+                // Currently processing
                 else
                 {
+                    // Stop command
                     if (string.Equals(actionCommand.Command, _stopCommand, StringComparison.OrdinalIgnoreCase))
                     {
-                        context.Output(input);
+                        ValidateStopToken(context, actionCommand.Data);
-                        context.Debug("Paused processing commands until '##[{actionCommand.Data}]' is received");
+
                         _stopToken = actionCommand.Data;
                         _stopProcessCommand = true;
                         _registeredCommands.Add(_stopToken);
+                        if (_stopToken.Length > 6)
+                        {
+                            HostContext.SecretMasker.AddValue(_stopToken);
+                        }
+
+                        context.Output(input);
+                        context.Debug("Paused processing commands until the token you called ::stopCommands:: with is received");
                         return true;
                     }
+                    // Found command
                     else if (_commandExtensions.TryGetValue(actionCommand.Command, out IActionCommandExtension extension))
                     {
                         if (context.EchoOnActionCommand && !extension.OmitEcho)
@@ -126,6 +142,7 @@ namespace GitHub.Runner.Worker
                             context.CommandResult = TaskResult.Failed;
                         }
                     }
+                    // Command not found
                     else
                     {
                         context.Warning($"Can't find command extension for ##[{actionCommand.Command}.command].");
@@ -135,6 +152,45 @@ namespace GitHub.Runner.Worker
 
             return true;
         }
+
+        private void ValidateStopToken(IExecutionContext context, string stopToken)
+        {
+#if OS_WINDOWS
+            var envContext = context.ExpressionValues["env"] as DictionaryContextData;
+#else
+            var envContext = context.ExpressionValues["env"] as CaseSensitiveDictionaryContextData;
+#endif
+            var allowUnsecureStopCommandTokens = false;
+            allowUnsecureStopCommandTokens = StringUtil.ConvertToBoolean(Environment.GetEnvironmentVariable(Constants.Variables.Actions.AllowUnsupportedStopCommandTokens));
+            if (!allowUnsecureStopCommandTokens && envContext.ContainsKey(Constants.Variables.Actions.AllowUnsupportedStopCommandTokens))
+            {
+                allowUnsecureStopCommandTokens = StringUtil.ConvertToBoolean(envContext[Constants.Variables.Actions.AllowUnsupportedStopCommandTokens].ToString());
+            }
+
+            bool isTokenInvalid = _registeredCommands.Contains(stopToken)
+                || string.IsNullOrEmpty(stopToken)
+                || string.Equals(stopToken, "pause-logging", StringComparison.OrdinalIgnoreCase);
+
+            if (isTokenInvalid)
+            {
+                var telemetry = new JobTelemetry
+                {
+                    Message = $"Invoked ::stopCommand:: with token: [{stopToken}]",
+                    Type = JobTelemetryType.ActionCommand
+                };
+                context.JobTelemetry.Add(telemetry);
+            }
+
+            if (isTokenInvalid && !allowUnsecureStopCommandTokens)
+            {
+                throw new Exception(Constants.Runner.UnsupportedStopCommandTokenDisabled);
+            }
+        }
+
+        internal static bool EnhancedAnnotationsEnabled(IExecutionContext context)
+        {
+            return context.Global.Variables.GetBoolean("DistributedTask.EnhancedAnnotations") ?? false;
+        }
     }
 
     public interface IActionCommandExtension : IExtension
@@ -236,7 +292,7 @@ namespace GitHub.Runner.Worker
             public const String Name = "name";
         }
 
-        private string[] _setEnvBlockList = 
+        private string[] _setEnvBlockList =
         {
             "NODE_OPTIONS"
         };
@@ -279,8 +335,21 @@ namespace GitHub.Runner.Worker
             {
                 throw new Exception("Required field 'name' is missing in ##[save-state] command.");
             }
-
+            // Embedded steps (composite) keep track of the state at the root level
-            context.IntraActionState[stateName] = command.Data;
+            if (context.IsEmbedded)
+            {
+                var id = context.EmbeddedId;
+                if (!context.Root.EmbeddedIntraActionState.ContainsKey(id))
+                {
+                    context.Root.EmbeddedIntraActionState[id] = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+                }
+                context.Root.EmbeddedIntraActionState[id][stateName] = command.Data;
+            }
+            // Otherwise modify the ExecutionContext
+            else
+            {
+                context.IntraActionState[stateName] = command.Data;
+            }
             context.Debug($"Save intra-action state {stateName} = {command.Data}");
         }
 
@@ -312,6 +381,13 @@ namespace GitHub.Runner.Worker
 
                 HostContext.SecretMasker.AddValue(command.Data);
                 Trace.Info($"Add new secret mask with length of {command.Data.Length}");
+
+                // Also add each individual line. Typically individual lines are processed from STDOUT of child processes.
+                var split = command.Data.Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+                foreach (var item in split)
+                {
+                    HostContext.SecretMasker.AddValue(item);
+                }
             }
         }
     }
@@ -324,7 +400,7 @@ namespace GitHub.Runner.Worker
         public Type ExtensionType => typeof(IActionCommandExtension);
 
         public void ProcessCommand(IExecutionContext context, string line, ActionCommand command, ContainerInfo container)
-        {          
+        {
             var allowUnsecureCommands = false;
             bool.TryParse(Environment.GetEnvironmentVariable(Constants.Variables.Actions.AllowUnsupportedCommands), out allowUnsecureCommands);
 
@@ -492,6 +568,13 @@ namespace GitHub.Runner.Worker
         public override string Command => "error";
     }
 
+    public sealed class NoticeCommandExtension : IssueCommandExtension
+    {
+        public override IssueType Type => IssueType.Notice;
+
+        public override string Command => "notice";
+    }
+
     public abstract class IssueCommandExtension : RunnerService, IActionCommandExtension
     {
         public abstract IssueType Type { get; }
@@ -506,6 +589,11 @@ namespace GitHub.Runner.Worker
             command.Properties.TryGetValue(IssueCommandProperties.Line, out string line);
             command.Properties.TryGetValue(IssueCommandProperties.Column, out string column);
 
+            if (!ActionCommandManager.EnhancedAnnotationsEnabled(context))
+            {
+                context.Debug("Enhanced Annotations not enabled on the server. The 'title', 'end_line', and 'end_column' fields are unsupported.");
+            }
+
             Issue issue = new Issue()
             {
                 Category = "General",
@@ -557,13 +645,73 @@ namespace GitHub.Runner.Worker
             context.AddIssue(issue);
         }
 
+        public static void ValidateLinesAndColumns(ActionCommand command, IExecutionContext context)
+        {
+            command.Properties.TryGetValue(IssueCommandProperties.Line, out string line);
+            command.Properties.TryGetValue(IssueCommandProperties.EndLine, out string endLine);
+            command.Properties.TryGetValue(IssueCommandProperties.Column, out string column);
+            command.Properties.TryGetValue(IssueCommandProperties.EndColumn, out string endColumn);
+
+            var hasStartLine = int.TryParse(line, out int lineNumber);
+            var hasEndLine = int.TryParse(endLine, out int endLineNumber);
+            var hasStartColumn = int.TryParse(column, out int columnNumber);
+            var hasEndColumn = int.TryParse(endColumn, out int endColumnNumber);
+            var hasColumn = hasStartColumn || hasEndColumn;
+
+            if (hasEndLine && !hasStartLine)
+            {
+                context.Debug($"Invalid {command.Command} command value. '{IssueCommandProperties.EndLine}' can only be set if '{IssueCommandProperties.Line}' is provided");
+                command.Properties[IssueCommandProperties.Line] = endLine;
+                hasStartLine = true;
+                line = endLine;
+            }
+
+            if (hasEndColumn && !hasStartColumn)
+            {
+                context.Debug($"Invalid {command.Command} command value. '{IssueCommandProperties.EndColumn}' can only be set if '{IssueCommandProperties.Column}' is provided");
+                command.Properties[IssueCommandProperties.Column] = endColumn;
+                hasStartColumn = true;
+                column = endColumn;
+            }
+
+            if (!hasStartLine && hasColumn)
+            {
+                context.Debug($"Invalid {command.Command} command value. '{IssueCommandProperties.Column}' and '{IssueCommandProperties.EndColumn}' can only be set if '{IssueCommandProperties.Line}' value is provided.");
+                command.Properties.Remove(IssueCommandProperties.Column);
+                command.Properties.Remove(IssueCommandProperties.EndColumn);
+            }
+
+            if (hasEndLine && line != endLine && hasColumn)
+            {
+                context.Debug($"Invalid {command.Command} command value. '{IssueCommandProperties.Column}' and '{IssueCommandProperties.EndColumn}' cannot be set if '{IssueCommandProperties.Line}' and '{IssueCommandProperties.EndLine}' are different values.");
+                command.Properties.Remove(IssueCommandProperties.Column);
+                command.Properties.Remove(IssueCommandProperties.EndColumn);
+            }
+
+            if (hasStartLine && hasEndLine && endLineNumber < lineNumber)
+            {
+                context.Debug($"Invalid {command.Command} command value. '{IssueCommandProperties.EndLine}' cannot be less than '{IssueCommandProperties.Line}'.");
+                command.Properties.Remove(IssueCommandProperties.Line);
+                command.Properties.Remove(IssueCommandProperties.EndLine);
+            }
+
+            if (hasStartColumn && hasEndColumn && endColumnNumber < columnNumber)
+            {
+                context.Debug($"Invalid {command.Command} command value. '{IssueCommandProperties.EndColumn}' cannot be less than '{IssueCommandProperties.Column}'.");
+                command.Properties.Remove(IssueCommandProperties.Column);
+                command.Properties.Remove(IssueCommandProperties.EndColumn);
+            }
+        }
+
         private static class IssueCommandProperties
         {
             public const String File = "file";
             public const String Line = "line";
+            public const String EndLine = "endLine";
             public const String Column = "col";
+            public const String EndColumn = "endColumn";
+            public const String Title = "title";
         }
-
     }
 
     public sealed class GroupCommandExtension : GroupingCommandExtension

src/Runner.Worker/ActionManager.cs

@@ -37,7 +37,10 @@ namespace GitHub.Runner.Worker
     public interface IActionManager : IRunnerService
     {
         Dictionary<Guid, ContainerInfo> CachedActionContainers { get; }
-        Task<PrepareResult> PrepareActionsAsync(IExecutionContext executionContext, IEnumerable<Pipelines.JobStep> steps);
+        Dictionary<Guid, List<Pipelines.ActionStep>> CachedEmbeddedPreSteps { get; }
+        Dictionary<Guid, List<Guid>> CachedEmbeddedStepIds { get; }
+        Dictionary<Guid, Stack<Pipelines.ActionStep>> CachedEmbeddedPostSteps { get; }
+        Task<PrepareResult> PrepareActionsAsync(IExecutionContext executionContext, IEnumerable<Pipelines.JobStep> steps, Guid rootStepId = default(Guid));
         Definition LoadAction(IExecutionContext executionContext, Pipelines.ActionStep action);
     }
 
@@ -48,35 +51,98 @@ namespace GitHub.Runner.Worker
         //81920 is the default used by System.IO.Stream.CopyTo and is under the large object heap threshold (85k).
         private const int _defaultCopyBufferSize = 81920;
         private const string _dotcomApiUrl = "https://api.github.com";
-        private readonly Dictionary<Guid, ContainerInfo> _cachedActionContainers = new Dictionary<Guid, ContainerInfo>();
 
+        private readonly Dictionary<Guid, ContainerInfo> _cachedActionContainers = new Dictionary<Guid, ContainerInfo>();
         public Dictionary<Guid, ContainerInfo> CachedActionContainers => _cachedActionContainers;
-        public async Task<PrepareResult> PrepareActionsAsync(IExecutionContext executionContext, IEnumerable<Pipelines.JobStep> steps)
+
+        private readonly Dictionary<Guid, List<Pipelines.ActionStep>> _cachedEmbeddedPreSteps = new Dictionary<Guid, List<Pipelines.ActionStep>>();
+        public Dictionary<Guid, List<Pipelines.ActionStep>> CachedEmbeddedPreSteps => _cachedEmbeddedPreSteps;
+
+        private readonly Dictionary<Guid, List<Guid>> _cachedEmbeddedStepIds = new Dictionary<Guid, List<Guid>>();
+        public Dictionary<Guid, List<Guid>> CachedEmbeddedStepIds => _cachedEmbeddedStepIds;
+
+        private readonly Dictionary<Guid, Stack<Pipelines.ActionStep>> _cachedEmbeddedPostSteps = new Dictionary<Guid, Stack<Pipelines.ActionStep>>();
+        public Dictionary<Guid, Stack<Pipelines.ActionStep>> CachedEmbeddedPostSteps => _cachedEmbeddedPostSteps;
+
+        public async Task<PrepareResult> PrepareActionsAsync(IExecutionContext executionContext, IEnumerable<Pipelines.JobStep> steps, Guid rootStepId = default(Guid))
         {
+            // Assert inputs
             ArgUtil.NotNull(executionContext, nameof(executionContext));
             ArgUtil.NotNull(steps, nameof(steps));
-
+            var state = new PrepareActionsState
-            executionContext.Output("Prepare all required actions");
-            Dictionary<string, List<Guid>> imagesToPull = new Dictionary<string, List<Guid>>(StringComparer.OrdinalIgnoreCase);
-            Dictionary<string, List<Guid>> imagesToBuild = new Dictionary<string, List<Guid>>(StringComparer.OrdinalIgnoreCase);
-            Dictionary<string, ActionContainer> imagesToBuildInfo = new Dictionary<string, ActionContainer>(StringComparer.OrdinalIgnoreCase);
-            List<JobExtensionRunner> containerSetupSteps = new List<JobExtensionRunner>();
-            Dictionary<Guid, IActionRunner> preStepTracker = new Dictionary<Guid, IActionRunner>();
-            IEnumerable<Pipelines.ActionStep> actions = steps.OfType<Pipelines.ActionStep>();
-
-            // TODO: Deprecate the PREVIEW_ACTION_TOKEN
-            // Log even if we aren't using it to ensure users know.
-            if (!string.IsNullOrEmpty(executionContext.Global.Variables.Get("PREVIEW_ACTION_TOKEN")))
             {
-                executionContext.Warning("The 'PREVIEW_ACTION_TOKEN' secret is deprecated. Please remove it from the repository's secrets");
+                ImagesToBuild = new Dictionary<string, List<Guid>>(StringComparer.OrdinalIgnoreCase),
+                ImagesToPull = new Dictionary<string, List<Guid>>(StringComparer.OrdinalIgnoreCase),
+                ImagesToBuildInfo = new Dictionary<string, ActionContainer>(StringComparer.OrdinalIgnoreCase),
+                PreStepTracker = new Dictionary<Guid, IActionRunner>()
+            };
+            var containerSetupSteps = new List<JobExtensionRunner>();
+            var depth = 0;
+            // We are running at the start of a job
+            if (rootStepId == default(Guid))
+            {
+                IOUtil.DeleteDirectory(HostContext.GetDirectory(WellKnownDirectory.Actions), executionContext.CancellationToken);
+            }
+            // We are running mid job due to a local composite action
+            else
+            {
+                if (!_cachedEmbeddedStepIds.ContainsKey(rootStepId))
+                {
+                    _cachedEmbeddedStepIds[rootStepId] = new List<Guid>();
+                    foreach (var compositeStep in steps)
+                    {
+                        var guid = Guid.NewGuid();
+                        compositeStep.Id = guid;
+                        _cachedEmbeddedStepIds[rootStepId].Add(guid);
+                    }
+                }
+                depth = 1;
+            }
+            IEnumerable<Pipelines.ActionStep> actions = steps.OfType<Pipelines.ActionStep>();
+            executionContext.Output("Prepare all required actions");
+            var result = await PrepareActionsRecursiveAsync(executionContext, state, actions, depth, rootStepId);
+            if (state.ImagesToPull.Count > 0)
+            {
+                foreach (var imageToPull in result.ImagesToPull)
+                {
+                    Trace.Info($"{imageToPull.Value.Count} steps need to pull image '{imageToPull.Key}'");
+                    containerSetupSteps.Add(new JobExtensionRunner(runAsync: this.PullActionContainerAsync,
+                                                                   condition: $"{PipelineTemplateConstants.Success}()",
+                                                                   displayName: $"Pull {imageToPull.Key}",
+                                                                   data: new ContainerSetupInfo(imageToPull.Value, imageToPull.Key)));
+                }
             }
 
-            // Clear the cache (for self-hosted runners)
+            if (result.ImagesToBuild.Count > 0)
-            IOUtil.DeleteDirectory(HostContext.GetDirectory(WellKnownDirectory.Actions), executionContext.CancellationToken);
+            {
+                foreach (var imageToBuild in result.ImagesToBuild)
+                {
+                    var setupInfo = result.ImagesToBuildInfo[imageToBuild.Key];
+                    Trace.Info($"{imageToBuild.Value.Count} steps need to build image from '{setupInfo.Dockerfile}'");
+                    containerSetupSteps.Add(new JobExtensionRunner(runAsync: this.BuildActionContainerAsync,
+                                                                   condition: $"{PipelineTemplateConstants.Success}()",
+                                                                   displayName: $"Build {setupInfo.ActionRepository}",
+                                                                   data: new ContainerSetupInfo(imageToBuild.Value, setupInfo.Dockerfile, setupInfo.WorkingDirectory)));
+                }
+            }
 
-            // todo: Remove when feature flag DistributedTask.NewActionMetadata is removed
+#if !OS_LINUX
-            var newActionMetadata = executionContext.Global.Variables.GetBoolean("DistributedTask.NewActionMetadata") ?? false;
+            if (containerSetupSteps.Count > 0)
+            {
+                executionContext.Output("Container action is only supported on Linux, skip pull and build docker images.");
+                containerSetupSteps.Clear();
+            }
+#endif
+            return new PrepareResult(containerSetupSteps, result.PreStepTracker);
+        }
 
+        private async Task<PrepareActionsState> PrepareActionsRecursiveAsync(IExecutionContext executionContext, PrepareActionsState state, IEnumerable<Pipelines.ActionStep> actions, Int32 depth = 0, Guid parentStepId = default(Guid))
+        {
+            ArgUtil.NotNull(executionContext, nameof(executionContext));
+            if (depth > Constants.CompositeActionsMaxDepth)
+            {
+                throw new Exception($"Composite action depth exceeded max depth {Constants.CompositeActionsMaxDepth}");
+            }
             var repositoryActions = new List<Pipelines.ActionStep>();
 
             foreach (var action in actions)
@@ -88,66 +154,15 @@ namespace GitHub.Runner.Worker
                     ArgUtil.NotNull(containerReference, nameof(containerReference));
                     ArgUtil.NotNullOrEmpty(containerReference.Image, nameof(containerReference.Image));
 
-                    if (!imagesToPull.ContainsKey(containerReference.Image))
+                    if (!state.ImagesToPull.ContainsKey(containerReference.Image))
                     {
-                        imagesToPull[containerReference.Image] = new List<Guid>();
+                        state.ImagesToPull[containerReference.Image] = new List<Guid>();
                     }
 
                     Trace.Info($"Action {action.Name} ({action.Id}) needs to pull image '{containerReference.Image}'");
-                    imagesToPull[containerReference.Image].Add(action.Id);
+                    state.ImagesToPull[containerReference.Image].Add(action.Id);
                 }
-                // todo: Remove when feature flag DistributedTask.NewActionMetadata is removed
+                else if (action.Reference.Type == Pipelines.ActionSourceType.Repository)
-                else if (action.Reference.Type == Pipelines.ActionSourceType.Repository && !newActionMetadata)
-                {
-                    // only download the repository archive
-                    await DownloadRepositoryActionAsync(executionContext, action);
-
-                    // more preparation base on content in the repository (action.yml)
-                    var setupInfo = PrepareRepositoryActionAsync(executionContext, action);
-                    if (setupInfo != null)
-                    {
-                        if (!string.IsNullOrEmpty(setupInfo.Image))
-                        {
-                            if (!imagesToPull.ContainsKey(setupInfo.Image))
-                            {
-                                imagesToPull[setupInfo.Image] = new List<Guid>();
-                            }
-
-                            Trace.Info($"Action {action.Name} ({action.Id}) from repository '{setupInfo.ActionRepository}' needs to pull image '{setupInfo.Image}'");
-                            imagesToPull[setupInfo.Image].Add(action.Id);
-                        }
-                        else
-                        {
-                            ArgUtil.NotNullOrEmpty(setupInfo.ActionRepository, nameof(setupInfo.ActionRepository));
-
-                            if (!imagesToBuild.ContainsKey(setupInfo.ActionRepository))
-                            {
-                                imagesToBuild[setupInfo.ActionRepository] = new List<Guid>();
-                            }
-
-                            Trace.Info($"Action {action.Name} ({action.Id}) from repository '{setupInfo.ActionRepository}' needs to build image '{setupInfo.Dockerfile}'");
-                            imagesToBuild[setupInfo.ActionRepository].Add(action.Id);
-                            imagesToBuildInfo[setupInfo.ActionRepository] = setupInfo;
-                        }
-                    }
-
-                    var repoAction = action.Reference as Pipelines.RepositoryPathReference;
-                    if (repoAction.RepositoryType != Pipelines.PipelineConstants.SelfAlias)
-                    {
-                        var definition = LoadAction(executionContext, action);
-                        if (definition.Data.Execution.HasPre)
-                        {
-                            var actionRunner = HostContext.CreateService<IActionRunner>();
-                            actionRunner.Action = action;
-                            actionRunner.Stage = ActionRunStage.Pre;
-                            actionRunner.Condition = definition.Data.Execution.InitCondition;
-
-                            Trace.Info($"Add 'pre' execution for {action.Id}");
-                            preStepTracker[action.Id] = actionRunner;
-                        }
-                    }
-                }
-                else if (action.Reference.Type == Pipelines.ActionSourceType.Repository && newActionMetadata)
                 {
                     repositoryActions.Add(action);
                 }
@@ -179,85 +194,96 @@ namespace GitHub.Runner.Worker
                 foreach (var action in repositoryActions)
                 {
                     var setupInfo = PrepareRepositoryActionAsync(executionContext, action);
-                    if (setupInfo != null)
+                    if (setupInfo != null && setupInfo.Container != null)
                     {
-                        if (!string.IsNullOrEmpty(setupInfo.Image))
+                        if (!string.IsNullOrEmpty(setupInfo.Container.Image))
                         {
-                            if (!imagesToPull.ContainsKey(setupInfo.Image))
+                            if (!state.ImagesToPull.ContainsKey(setupInfo.Container.Image))
                             {
-                                imagesToPull[setupInfo.Image] = new List<Guid>();
+                                state.ImagesToPull[setupInfo.Container.Image] = new List<Guid>();
                             }
 
-                            Trace.Info($"Action {action.Name} ({action.Id}) from repository '{setupInfo.ActionRepository}' needs to pull image '{setupInfo.Image}'");
+                            Trace.Info($"Action {action.Name} ({action.Id}) from repository '{setupInfo.Container.ActionRepository}' needs to pull image '{setupInfo.Container.Image}'");
-                            imagesToPull[setupInfo.Image].Add(action.Id);
+                            state.ImagesToPull[setupInfo.Container.Image].Add(action.Id);
                         }
                         else
                         {
-                            ArgUtil.NotNullOrEmpty(setupInfo.ActionRepository, nameof(setupInfo.ActionRepository));
+                            ArgUtil.NotNullOrEmpty(setupInfo.Container.ActionRepository, nameof(setupInfo.Container.ActionRepository));
 
-                            if (!imagesToBuild.ContainsKey(setupInfo.ActionRepository))
+                            if (!state.ImagesToBuild.ContainsKey(setupInfo.Container.ActionRepository))
                             {
-                                imagesToBuild[setupInfo.ActionRepository] = new List<Guid>();
+                                state.ImagesToBuild[setupInfo.Container.ActionRepository] = new List<Guid>();
                             }
 
-                            Trace.Info($"Action {action.Name} ({action.Id}) from repository '{setupInfo.ActionRepository}' needs to build image '{setupInfo.Dockerfile}'");
+                            Trace.Info($"Action {action.Name} ({action.Id}) from repository '{setupInfo.Container.ActionRepository}' needs to build image '{setupInfo.Container.Dockerfile}'");
-                            imagesToBuild[setupInfo.ActionRepository].Add(action.Id);
+                            state.ImagesToBuild[setupInfo.Container.ActionRepository].Add(action.Id);
-                            imagesToBuildInfo[setupInfo.ActionRepository] = setupInfo;
+                            state.ImagesToBuildInfo[setupInfo.Container.ActionRepository] = setupInfo.Container;
                         }
                     }
-
+                    else if (setupInfo != null && setupInfo.Steps != null && setupInfo.Steps.Count > 0)
+                    {
+                        state = await PrepareActionsRecursiveAsync(executionContext, state, setupInfo.Steps, depth + 1, action.Id);
+                    }
                     var repoAction = action.Reference as Pipelines.RepositoryPathReference;
                     if (repoAction.RepositoryType != Pipelines.PipelineConstants.SelfAlias)
                     {
                         var definition = LoadAction(executionContext, action);
                         if (definition.Data.Execution.HasPre)
                         {
-                            var actionRunner = HostContext.CreateService<IActionRunner>();
-                            actionRunner.Action = action;
-                            actionRunner.Stage = ActionRunStage.Pre;
-                            actionRunner.Condition = definition.Data.Execution.InitCondition;
-
                             Trace.Info($"Add 'pre' execution for {action.Id}");
-                            preStepTracker[action.Id] = actionRunner;
+                            // Root Step
+                            if (depth < 1)
+                            {
+                                var actionRunner = HostContext.CreateService<IActionRunner>();
+                                actionRunner.Action = action;
+                                actionRunner.Stage = ActionRunStage.Pre;
+                                actionRunner.Condition = definition.Data.Execution.InitCondition;
+                                state.PreStepTracker[action.Id] = actionRunner;
+                            }
+                            // Embedded Step
+                            else
+                            {
+                                if (!_cachedEmbeddedPreSteps.ContainsKey(parentStepId))
+                                {
+                                    _cachedEmbeddedPreSteps[parentStepId] = new List<Pipelines.ActionStep>();
+                                }
+                                // Clone action so we can modify the condition without affecting the original
+                                var clonedAction = action.Clone() as Pipelines.ActionStep;
+                                clonedAction.Condition = definition.Data.Execution.InitCondition;
+                                _cachedEmbeddedPreSteps[parentStepId].Add(clonedAction);
+                            }
                         }
+
+                        if (definition.Data.Execution.HasPost && depth > 0)
+                        {
+                            if (!_cachedEmbeddedPostSteps.ContainsKey(parentStepId))
+                            {
+                                // If we haven't done so already, add the parent to the post steps
+                                _cachedEmbeddedPostSteps[parentStepId] = new Stack<Pipelines.ActionStep>();
+                            }
+                            // Clone action so we can modify the condition without affecting the original
+                            var clonedAction = action.Clone() as Pipelines.ActionStep;
+                            clonedAction.Condition = definition.Data.Execution.CleanupCondition;
+                            _cachedEmbeddedPostSteps[parentStepId].Push(clonedAction);
+                        }
+                    }
+                    else if (depth > 0)
+                    {
+                        // if we're in a composite action and haven't loaded the local action yet
+                        // we assume it has a post step
+                        if (!_cachedEmbeddedPostSteps.ContainsKey(parentStepId))
+                        {
+                            // If we haven't done so already, add the parent to the post steps
+                            _cachedEmbeddedPostSteps[parentStepId] = new Stack<Pipelines.ActionStep>();
+                        }
+                        // Clone action so we can modify the condition without affecting the original
+                        var clonedAction = action.Clone() as Pipelines.ActionStep;
+                        _cachedEmbeddedPostSteps[parentStepId].Push(clonedAction);
                     }
                 }
             }
 
-            if (imagesToPull.Count > 0)
+            return state;
-            {
-                foreach (var imageToPull in imagesToPull)
-                {
-                    Trace.Info($"{imageToPull.Value.Count} steps need to pull image '{imageToPull.Key}'");
-                    containerSetupSteps.Add(new JobExtensionRunner(runAsync: this.PullActionContainerAsync,
-                                                                   condition: $"{PipelineTemplateConstants.Success}()",
-                                                                   displayName: $"Pull {imageToPull.Key}",
-                                                                   data: new ContainerSetupInfo(imageToPull.Value, imageToPull.Key)));
-                }
-            }
-
-            if (imagesToBuild.Count > 0)
-            {
-                foreach (var imageToBuild in imagesToBuild)
-                {
-                    var setupInfo = imagesToBuildInfo[imageToBuild.Key];
-                    Trace.Info($"{imageToBuild.Value.Count} steps need to build image from '{setupInfo.Dockerfile}'");
-                    containerSetupSteps.Add(new JobExtensionRunner(runAsync: this.BuildActionContainerAsync,
-                                                                   condition: $"{PipelineTemplateConstants.Success}()",
-                                                                   displayName: $"Build {setupInfo.ActionRepository}",
-                                                                   data: new ContainerSetupInfo(imageToBuild.Value, setupInfo.Dockerfile, setupInfo.WorkingDirectory)));
-                }
-            }
-
-#if !OS_LINUX
-            if (containerSetupSteps.Count > 0)
-            {
-                executionContext.Output("Container action is only supported on Linux, skip pull and build docker images.");
-                containerSetupSteps.Clear();
-            }
-#endif
-
-            return new PrepareResult(containerSetupSteps, preStepTracker);
         }
 
         public Definition LoadAction(IExecutionContext executionContext, Pipelines.ActionStep action)
@@ -402,6 +428,39 @@ namespace GitHub.Runner.Worker
                         Trace.Verbose($"Details: {StringUtil.ConvertToJson(compositeAction?.Steps)}");
                         Trace.Info($"Load: {compositeAction.Outputs?.Count ?? 0} number of outputs");
                         Trace.Info($"Details: {StringUtil.ConvertToJson(compositeAction?.Outputs)}");
+
+                        if (CachedEmbeddedPreSteps.TryGetValue(action.Id, out var preSteps))
+                        {
+                            compositeAction.PreSteps = preSteps;
+                        }
+
+                        if (CachedEmbeddedPostSteps.TryGetValue(action.Id, out var postSteps))
+                        {
+                            compositeAction.PostSteps = postSteps;
+                        }
+
+                        if (_cachedEmbeddedStepIds.ContainsKey(action.Id))
+                        {
+                            for (var i = 0; i < compositeAction.Steps.Count; i++)
+                            {
+                                // Load stored Ids for later load actions
+                                compositeAction.Steps[i].Id = _cachedEmbeddedStepIds[action.Id][i];
+                                if (string.IsNullOrEmpty(executionContext.Global.Variables.Get("DistributedTask.EnableCompositeActions")) && compositeAction.Steps[i].Reference.Type != Pipelines.ActionSourceType.Script)
+                                {
+                                    throw new Exception("`uses:` keyword is not currently supported.");
+                                }
+                            }
+                        }
+                        else
+                        {
+                            _cachedEmbeddedStepIds[action.Id] = new List<Guid>();
+                            foreach (var compositeStep in compositeAction.Steps)
+                            {
+                                var guid = Guid.NewGuid();
+                                compositeStep.Id = guid;
+                                _cachedEmbeddedStepIds[action.Id].Add(guid);
+                            }
+                        }
                     }
                     else
                     {
@@ -471,12 +530,12 @@ namespace GitHub.Runner.Worker
             executionContext.Output($"##[group]Pull down action image '{setupInfo.Container.Image}'");
 
             // Pull down docker image with retry up to 3 times
-            var dockerManger = HostContext.GetService<IDockerCommandManager>();
+            var dockerManager = HostContext.GetService<IDockerCommandManager>();
             int retryCount = 0;
             int pullExitCode = 0;
             while (retryCount < 3)
             {
-                pullExitCode = await dockerManger.DockerPull(executionContext, setupInfo.Container.Image);
+                pullExitCode = await dockerManager.DockerPull(executionContext, setupInfo.Container.Image);
                 if (pullExitCode == 0)
                 {
                     break;
@@ -515,13 +574,13 @@ namespace GitHub.Runner.Worker
             executionContext.Output($"##[group]Build container for action use: '{setupInfo.Container.Dockerfile}'.");
 
             // Build docker image with retry up to 3 times
-            var dockerManger = HostContext.GetService<IDockerCommandManager>();
+            var dockerManager = HostContext.GetService<IDockerCommandManager>();
             int retryCount = 0;
             int buildExitCode = 0;
-            var imageName = $"{dockerManger.DockerInstanceLabel}:{Guid.NewGuid().ToString("N")}";
+            var imageName = $"{dockerManager.DockerInstanceLabel}:{Guid.NewGuid().ToString("N")}";
             while (retryCount < 3)
             {
-                buildExitCode = await dockerManger.DockerBuild(
+                buildExitCode = await dockerManager.DockerBuild(
                     executionContext,
                     setupInfo.Container.WorkingDirectory,
                     setupInfo.Container.Dockerfile,
@@ -574,6 +633,7 @@ namespace GitHub.Runner.Worker
                     {
                         NameWithOwner = repositoryReference.Name,
                         Ref = repositoryReference.Ref,
+                        Path = repositoryReference.Path,
                     };
                 })
                 .ToList();
@@ -596,7 +656,12 @@ namespace GitHub.Runner.Worker
                 }
                 catch (Exception ex) when (!executionContext.CancellationToken.IsCancellationRequested) // Do not retry if the run is canceled.
                 {
-                    if (attempt < 3)
+                    // UnresolvableActionDownloadInfoException is a 422 client error, don't retry
+                    // Some possible cases are:
+                    // * Repo is rate limited
+                    // * Repo or tag doesn't exist, or isn't public
+                    // * Policy validation failed
+                    if (attempt < 3 && !(ex is WebApi.UnresolvableActionDownloadInfoException))
                     {
                         executionContext.Output($"Failed to resolve action download info. Error: {ex.Message}");
                         executionContext.Debug(ex.ToString());
@@ -612,6 +677,7 @@ namespace GitHub.Runner.Worker
                         // Some possible cases are:
                         // * Repo is rate limited
                         // * Repo or tag doesn't exist, or isn't public
+                        // * Policy validation failed
                         if (ex is WebApi.UnresolvableActionDownloadInfoException)
                         {
                             throw;
@@ -647,90 +713,6 @@ namespace GitHub.Runner.Worker
             return actionDownloadInfos.Actions;
         }
 
-        // todo: Remove when feature flag DistributedTask.NewActionMetadata is removed
-        private async Task DownloadRepositoryActionAsync(IExecutionContext executionContext, Pipelines.ActionStep repositoryAction)
-        {
-            Trace.Entering();
-            ArgUtil.NotNull(executionContext, nameof(executionContext));
-
-            var repositoryReference = repositoryAction.Reference as Pipelines.RepositoryPathReference;
-            ArgUtil.NotNull(repositoryReference, nameof(repositoryReference));
-
-            if (string.Equals(repositoryReference.RepositoryType, Pipelines.PipelineConstants.SelfAlias, StringComparison.OrdinalIgnoreCase))
-            {
-                Trace.Info($"Repository action is in 'self' repository.");
-                return;
-            }
-
-            if (!string.Equals(repositoryReference.RepositoryType, Pipelines.RepositoryTypes.GitHub, StringComparison.OrdinalIgnoreCase))
-            {
-                throw new NotSupportedException(repositoryReference.RepositoryType);
-            }
-
-            ArgUtil.NotNullOrEmpty(repositoryReference.Name, nameof(repositoryReference.Name));
-            ArgUtil.NotNullOrEmpty(repositoryReference.Ref, nameof(repositoryReference.Ref));
-
-            string destDirectory = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Actions), repositoryReference.Name.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar), repositoryReference.Ref);
-            string watermarkFile = GetWatermarkFilePath(destDirectory);
-            if (File.Exists(watermarkFile))
-            {
-                executionContext.Debug($"Action '{repositoryReference.Name}@{repositoryReference.Ref}' already downloaded at '{destDirectory}'.");
-                return;
-            }
-            else
-            {
-                // make sure we get a clean folder ready to use.
-                IOUtil.DeleteDirectory(destDirectory, executionContext.CancellationToken);
-                Directory.CreateDirectory(destDirectory);
-                executionContext.Output($"Download action repository '{repositoryReference.Name}@{repositoryReference.Ref}'");
-            }
-
-            var configurationStore = HostContext.GetService<IConfigurationStore>();
-            var isHostedServer = configurationStore.GetSettings().IsHostedServer;
-            if (isHostedServer)
-            {
-                string apiUrl = GetApiUrl(executionContext);
-                string archiveLink = BuildLinkToActionArchive(apiUrl, repositoryReference.Name, repositoryReference.Ref);
-                var downloadDetails = new ActionDownloadDetails(archiveLink, ConfigureAuthorizationFromContext);
-                await DownloadRepositoryActionAsync(executionContext, downloadDetails, null, destDirectory);
-                return;
-            }
-            else
-            {
-                string apiUrl = GetApiUrl(executionContext);
-
-                // URLs to try:
-                var downloadAttempts = new List<ActionDownloadDetails> {
-                    // A built-in action or an action the user has created, on their GHES instance
-                    // Example:  https://my-ghes/api/v3/repos/my-org/my-action/tarball/v1
-                    new ActionDownloadDetails(
-                        BuildLinkToActionArchive(apiUrl, repositoryReference.Name, repositoryReference.Ref),
-                        ConfigureAuthorizationFromContext),
-
-                    // The same action, on GitHub.com
-                    // Example:  https://api.github.com/repos/my-org/my-action/tarball/v1
-                    new ActionDownloadDetails(
-                        BuildLinkToActionArchive(_dotcomApiUrl, repositoryReference.Name, repositoryReference.Ref),
-                        configureAuthorization: (e,h) => { /* no authorization for dotcom */ })
-                };
-
-                foreach (var downloadAttempt in downloadAttempts)
-                {
-                    try
-                    {
-                        await DownloadRepositoryActionAsync(executionContext, downloadAttempt, null, destDirectory);
-                        return;
-                    }
-                    catch (ActionNotFoundException)
-                    {
-                        Trace.Info($"Failed to find the action '{repositoryReference.Name}' at ref '{repositoryReference.Ref}' at {downloadAttempt.ArchiveLink}");
-                        continue;
-                    }
-                }
-                throw new ActionNotFoundException($"Failed to find the action '{repositoryReference.Name}' at ref '{repositoryReference.Ref}'.  Paths attempted: {string.Join(", ", downloadAttempts.Select(d => d.ArchiveLink))}");
-            }
-        }
-
         private async Task DownloadRepositoryActionAsync(IExecutionContext executionContext, WebApi.ActionDownloadInfo downloadInfo)
         {
             Trace.Entering();
@@ -751,10 +733,10 @@ namespace GitHub.Runner.Worker
                 // make sure we get a clean folder ready to use.
                 IOUtil.DeleteDirectory(destDirectory, executionContext.CancellationToken);
                 Directory.CreateDirectory(destDirectory);
-                executionContext.Output($"Download action repository '{downloadInfo.NameWithOwner}@{downloadInfo.Ref}'");
+                executionContext.Output($"Download action repository '{downloadInfo.NameWithOwner}@{downloadInfo.Ref}' (SHA:{downloadInfo.ResolvedSha})");
             }
 
-            await DownloadRepositoryActionAsync(executionContext, null, downloadInfo, destDirectory);
+            await DownloadRepositoryActionAsync(executionContext, downloadInfo, destDirectory);
         }
 
         private string GetApiUrl(IExecutionContext executionContext)
@@ -777,8 +759,7 @@ namespace GitHub.Runner.Worker
 #endif
         }
 
-        // todo: Remove the parameter "actionDownloadDetails" when feature flag DistributedTask.NewActionMetadata is removed
+        private async Task DownloadRepositoryActionAsync(IExecutionContext executionContext, WebApi.ActionDownloadInfo downloadInfo, string destDirectory)
-        private async Task DownloadRepositoryActionAsync(IExecutionContext executionContext, ActionDownloadDetails actionDownloadDetails, WebApi.ActionDownloadInfo downloadInfo, string destDirectory)
         {
             //download and extract action in a temp folder and rename it on success
             string tempDirectory = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Actions), "_temp_" + Guid.NewGuid());
@@ -786,10 +767,10 @@ namespace GitHub.Runner.Worker
 
 #if OS_WINDOWS
             string archiveFile = Path.Combine(tempDirectory, $"{Guid.NewGuid()}.zip");
-            string link = downloadInfo?.ZipballUrl ?? actionDownloadDetails.ArchiveLink;
+            string link = downloadInfo?.ZipballUrl;
 #else
             string archiveFile = Path.Combine(tempDirectory, $"{Guid.NewGuid()}.tar.gz");
-            string link = downloadInfo?.TarballUrl ?? actionDownloadDetails.ArchiveLink;
+            string link = downloadInfo?.TarballUrl;
 #endif
 
             Trace.Info($"Save archive '{link}' into {archiveFile}.");
@@ -811,16 +792,7 @@ namespace GitHub.Runner.Worker
                             using (var httpClientHandler = HostContext.CreateHttpClientHandler())
                             using (var httpClient = new HttpClient(httpClientHandler))
                             {
-                                // Legacy
+                                httpClient.DefaultRequestHeaders.Authorization = CreateAuthHeader(downloadInfo.Authentication?.Token);
-                                if (downloadInfo == null)
-                                {
-                                    actionDownloadDetails.ConfigureAuthorization(executionContext, httpClient);
-                                }
-                                // FF DistributedTask.NewActionMetadata
-                                else
-                                {
-                                    httpClient.DefaultRequestHeaders.Authorization = CreateAuthHeader(downloadInfo.Authentication?.Token);
-                                }
 
                                 httpClient.DefaultRequestHeaders.UserAgent.AddRange(HostContext.UserAgents);
                                 using (var response = await httpClient.GetAsync(link))
@@ -960,7 +932,6 @@ namespace GitHub.Runner.Worker
             }
         }
 
-        // todo: Remove when feature flag DistributedTask.NewActionMetadata is removed
         private void ConfigureAuthorizationFromContext(IExecutionContext executionContext, HttpClient httpClient)
         {
             var authToken = Environment.GetEnvironmentVariable("_GITHUB_ACTION_TOKEN");
@@ -986,7 +957,7 @@ namespace GitHub.Runner.Worker
 
         private string GetWatermarkFilePath(string directory) => directory + ".completed";
 
-        private ActionContainer PrepareRepositoryActionAsync(IExecutionContext executionContext, Pipelines.ActionStep repositoryAction)
+        private ActionSetupInfo PrepareRepositoryActionAsync(IExecutionContext executionContext, Pipelines.ActionStep repositoryAction)
         {
             var repositoryReference = repositoryAction.Reference as Pipelines.RepositoryPathReference;
             if (string.Equals(repositoryReference.RepositoryType, Pipelines.PipelineConstants.SelfAlias, StringComparison.OrdinalIgnoreCase))
@@ -994,8 +965,8 @@ namespace GitHub.Runner.Worker
                 Trace.Info($"Repository action is in 'self' repository.");
                 return null;
             }
-
+            var setupInfo = new ActionSetupInfo();
-            var setupInfo = new ActionContainer();
+            var actionContainer = new ActionContainer();
             string destDirectory = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Actions), repositoryReference.Name.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar), repositoryReference.Ref);
             string actionEntryDirectory = destDirectory;
             string dockerFileRelativePath = repositoryReference.Name;
@@ -1004,11 +975,11 @@ namespace GitHub.Runner.Worker
             {
                 actionEntryDirectory = Path.Combine(destDirectory, repositoryReference.Path);
                 dockerFileRelativePath = $"{dockerFileRelativePath}/{repositoryReference.Path}";
-                setupInfo.ActionRepository = $"{repositoryReference.Name}/{repositoryReference.Path}@{repositoryReference.Ref}";
+                actionContainer.ActionRepository = $"{repositoryReference.Name}/{repositoryReference.Path}@{repositoryReference.Ref}";
             }
             else
             {
-                setupInfo.ActionRepository = $"{repositoryReference.Name}@{repositoryReference.Ref}";
+                actionContainer.ActionRepository = $"{repositoryReference.Name}@{repositoryReference.Ref}";
             }
 
             // find the docker file or action.yml file
@@ -1038,8 +1009,9 @@ namespace GitHub.Runner.Worker
                         var dockerFileFullPath = Path.Combine(actionEntryDirectory, containerAction.Image);
                         executionContext.Debug($"Dockerfile for action: '{dockerFileFullPath}'.");
 
-                        setupInfo.Dockerfile = dockerFileFullPath;
+                        actionContainer.Dockerfile = dockerFileFullPath;
-                        setupInfo.WorkingDirectory = destDirectory;
+                        actionContainer.WorkingDirectory = destDirectory;
+                        setupInfo.Container = actionContainer;
                         return setupInfo;
                     }
                     else if (containerAction.Image.StartsWith("docker://", StringComparison.OrdinalIgnoreCase))
@@ -1048,7 +1020,8 @@ namespace GitHub.Runner.Worker
 
                         executionContext.Debug($"Container image for action: '{actionImage}'.");
 
-                        setupInfo.Image = actionImage;
+                        actionContainer.Image = actionImage;
+                        setupInfo.Container = actionContainer;
                         return setupInfo;
                     }
                     else
@@ -1068,8 +1041,30 @@ namespace GitHub.Runner.Worker
                 }
                 else if (actionDefinitionData.Execution.ExecutionType == ActionExecutionType.Composite)
                 {
-                    Trace.Info($"Action composite: {(actionDefinitionData.Execution as CompositeActionExecutionData).Steps}, no more preparation.");
+                    Trace.Info($"Loading Composite steps");
-                    return null;
+                    var compositeAction = actionDefinitionData.Execution as CompositeActionExecutionData;
+                    setupInfo.Steps = compositeAction.Steps;
+
+                    // cache steps ids if not done so already
+                    if (!_cachedEmbeddedStepIds.ContainsKey(repositoryAction.Id))
+                    {
+                        _cachedEmbeddedStepIds[repositoryAction.Id] = new List<Guid>();
+                        foreach (var compositeStep in compositeAction.Steps)
+                        {
+                            var guid = Guid.NewGuid();
+                            compositeStep.Id = guid;
+                            _cachedEmbeddedStepIds[repositoryAction.Id].Add(guid);
+                        }
+                    }
+
+                    foreach (var step in compositeAction.Steps)
+                    {
+                        if (string.IsNullOrEmpty(executionContext.Global.Variables.Get("DistributedTask.EnableCompositeActions")) && step.Reference.Type != Pipelines.ActionSourceType.Script)
+                        {
+                            throw new Exception("`uses:` keyword is not currently supported.");
+                        }
+                    }
+                    return setupInfo;
                 }
                 else
                 {
@@ -1079,15 +1074,17 @@ namespace GitHub.Runner.Worker
             else if (File.Exists(dockerFile))
             {
                 executionContext.Debug($"Dockerfile for action: '{dockerFile}'.");
-                setupInfo.Dockerfile = dockerFile;
+                actionContainer.Dockerfile = dockerFile;
-                setupInfo.WorkingDirectory = destDirectory;
+                actionContainer.WorkingDirectory = destDirectory;
+                setupInfo.Container = actionContainer;
                 return setupInfo;
             }
             else if (File.Exists(dockerFileLowerCase))
             {
                 executionContext.Debug($"Dockerfile for action: '{dockerFileLowerCase}'.");
-                setupInfo.Dockerfile = dockerFileLowerCase;
+                actionContainer.Dockerfile = dockerFileLowerCase;
-                setupInfo.WorkingDirectory = destDirectory;
+                actionContainer.WorkingDirectory = destDirectory;
+                setupInfo.Container = actionContainer;
                 return setupInfo;
             }
             else
@@ -1140,20 +1137,6 @@ namespace GitHub.Runner.Worker
             HostContext.SecretMasker.AddValue(base64EncodingToken);
             return new AuthenticationHeaderValue("Basic", base64EncodingToken);
         }
-
-        // todo: Remove when feature flag DistributedTask.NewActionMetadata is removed
-        private class ActionDownloadDetails
-        {
-            public string ArchiveLink { get; }
-
-            public Action<IExecutionContext, HttpClient> ConfigureAuthorization { get; }
-
-            public ActionDownloadDetails(string archiveLink, Action<IExecutionContext, HttpClient> configureAuthorization)
-            {
-                ArchiveLink = archiveLink;
-                ConfigureAuthorization = configureAuthorization;
-            }
-        }
     }
 
     public sealed class Definition
@@ -1216,6 +1199,8 @@ namespace GitHub.Runner.Worker
         public string Pre { get; set; }
 
         public string Post { get; set; }
+
+        public string NodeVersion { get; set; }
     }
 
     public sealed class PluginActionExecutionData : ActionExecutionData
@@ -1241,9 +1226,11 @@ namespace GitHub.Runner.Worker
     public sealed class CompositeActionExecutionData : ActionExecutionData
     {
         public override ActionExecutionType ExecutionType => ActionExecutionType.Composite;
-        public override bool HasPre => false;
+        public override bool HasPre => PreSteps.Count > 0;
-        public override bool HasPost => false;
+        public override bool HasPost => PostSteps.Count > 0;
+        public List<Pipelines.ActionStep> PreSteps { get; set; }
         public List<Pipelines.ActionStep> Steps { get; set; }
+        public Stack<Pipelines.ActionStep> PostSteps { get; set; }
         public MappingToken Outputs { get; set; }
     }
 
@@ -1303,4 +1290,18 @@ namespace GitHub.Runner.Worker
         public string WorkingDirectory { get; set; }
         public string ActionRepository { get; set; }
     }
+
+    public class ActionSetupInfo
+    {
+        public ActionContainer Container { get; set; }
+        public List<Pipelines.ActionStep> Steps { get; set; }
+    }
+
+    public class PrepareActionsState
+    {
+        public Dictionary<string, List<Guid>> ImagesToPull;
+        public Dictionary<string, List<Guid>> ImagesToBuild;
+        public Dictionary<string, ActionContainer> ImagesToBuildInfo;
+        public Dictionary<Guid, IActionRunner> PreStepTracker;
+    }
 }

src/Runner.Worker/ActionManifestManager.cs

@@ -311,7 +311,7 @@ namespace GitHub.Runner.Worker
             var result = new TemplateContext
             {
                 CancellationToken = CancellationToken.None,
-                Errors = new TemplateValidationErrors(10, 500),
+                Errors = new TemplateValidationErrors(10, int.MaxValue), // Don't truncate error messages otherwise we might not scrub secrets correctly
                 Memory = new TemplateMemory(
                     maxDepth: 100,
                     maxEvents: 1000000,
@@ -451,7 +451,8 @@ namespace GitHub.Runner.Worker
                         };
                     }
                 }
-                else if (string.Equals(usingToken.Value, "node12", StringComparison.OrdinalIgnoreCase))
+                else if (string.Equals(usingToken.Value, "node12", StringComparison.OrdinalIgnoreCase)||
+                         string.Equals(usingToken.Value, "node16", StringComparison.OrdinalIgnoreCase))
                 {
                     if (string.IsNullOrEmpty(mainToken?.Value))
                     {
@@ -461,6 +462,7 @@ namespace GitHub.Runner.Worker
                     {
                         return new NodeJSActionExecutionData()
                         {
+                            NodeVersion = usingToken.Value,
                             Script = mainToken.Value,
                             Pre = preToken?.Value,
                             InitCondition = preIfToken?.Value ?? "always()",
@@ -480,13 +482,17 @@ namespace GitHub.Runner.Worker
                         return new CompositeActionExecutionData()
                         {
                             Steps = steps.Cast<Pipelines.ActionStep>().ToList(),
+                            PreSteps = new List<Pipelines.ActionStep>(),
+                            PostSteps = new Stack<Pipelines.ActionStep>(),
+                            InitCondition = "always()",
+                            CleanupCondition = "always()",
                             Outputs = outputs
                         };
                     }
                 }
                 else
                 {
-                    throw new ArgumentOutOfRangeException($"'using: {usingToken.Value}' is not supported, use 'docker' or 'node12' instead.");
+                    throw new ArgumentOutOfRangeException($"'using: {usingToken.Value}' is not supported, use 'docker', 'node12' or 'node16' instead.");
                 }
             }
             else if (pluginToken != null)

src/Runner.Worker/ActionRunner.cs

@@ -82,6 +82,28 @@ namespace GitHub.Runner.Worker
             ActionExecutionData handlerData = definition.Data?.Execution;
             ArgUtil.NotNull(handlerData, nameof(handlerData));
 
+            List<JobExtensionRunner> localActionContainerSetupSteps = null;
+            // Handle Composite Local Actions
+            // Need to download and expand the tree of referenced actions
+            if (handlerData.ExecutionType == ActionExecutionType.Composite &&
+                handlerData is CompositeActionExecutionData compositeHandlerData &&
+                Stage == ActionRunStage.Main &&
+                Action.Reference is Pipelines.RepositoryPathReference localAction &&
+                string.Equals(localAction.RepositoryType, Pipelines.PipelineConstants.SelfAlias, StringComparison.OrdinalIgnoreCase))
+            {
+                var actionManager = HostContext.GetService<IActionManager>();
+                var prepareResult = await actionManager.PrepareActionsAsync(ExecutionContext, compositeHandlerData.Steps, ExecutionContext.Id);
+
+                // Reload definition since post may exist now (from embedded steps that were JIT downloaded)
+                definition = taskManager.LoadAction(ExecutionContext, Action);
+                ArgUtil.NotNull(definition, nameof(definition));
+                handlerData = definition.Data?.Execution;
+                ArgUtil.NotNull(handlerData, nameof(handlerData));
+
+                // Save container setup steps so we can reference them later
+                localActionContainerSetupSteps = prepareResult.ContainerSetupSteps;
+            }
+
             if (handlerData.HasPre &&
                 Action.Reference is Pipelines.RepositoryPathReference repoAction &&
                 string.Equals(repoAction.RepositoryType, Pipelines.PipelineConstants.SelfAlias, StringComparison.OrdinalIgnoreCase))
@@ -249,7 +271,8 @@ namespace GitHub.Runner.Worker
                             inputs,
                             environment,
                             ExecutionContext.Global.Variables,
-                            actionDirectory: definition.Directory);
+                            actionDirectory: definition.Directory,
+                            localActionContainerSetupSteps: localActionContainerSetupSteps);
 
             // Print out action details
             handler.PrintActionDetails(Stage);

src/Runner.Worker/ConditionTraceWriter.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Text;
+using GitHub.DistributedTask.Pipelines;
+using GitHub.Runner.Common;
+using GitHub.Runner.Sdk;
+using ObjectTemplating = GitHub.DistributedTask.ObjectTemplating;
+
+namespace GitHub.Runner.Worker
+{
+    public sealed class ConditionTraceWriter : ObjectTemplating::ITraceWriter
+    {
+        private readonly IExecutionContext _executionContext;
+        private readonly Tracing _trace;
+        private readonly StringBuilder _traceBuilder = new StringBuilder();
+
+        public string Trace => _traceBuilder.ToString();
+
+        public ConditionTraceWriter(Tracing trace, IExecutionContext executionContext)
+        {
+            ArgUtil.NotNull(trace, nameof(trace));
+            _trace = trace;
+            _executionContext = executionContext;
+        }
+
+        public void Error(string format, params Object[] args)
+        {
+            var message = StringUtil.Format(format, args);
+            _trace.Error(message);
+            _executionContext?.Debug(message);
+        }
+
+        public void Info(string format, params Object[] args)
+        {
+            var message = StringUtil.Format(format, args);
+            _trace.Info(message);
+            _executionContext?.Debug(message);
+            _traceBuilder.AppendLine(message);
+        }
+
+        public void Verbose(string format, params Object[] args)
+        {
+            var message = StringUtil.Format(format, args);
+            _trace.Verbose(message);
+            _executionContext?.Debug(message);
+        }
+    }
+}

src/Runner.Worker/Container/DockerCommandManager.cs

@@ -46,7 +46,7 @@ namespace GitHub.Runner.Worker.Container
         {
             base.Initialize(hostContext);
             DockerPath = WhichUtil.Which("docker", true, Trace);
-            DockerInstanceLabel = IOUtil.GetPathHash(hostContext.GetDirectory(WellKnownDirectory.Root)).Substring(0, 6);
+            DockerInstanceLabel = IOUtil.GetSha256Hash(hostContext.GetDirectory(WellKnownDirectory.Root)).Substring(0, 6);
         }
 
         public async Task<DockerVersion> DockerVersion(IExecutionContext context)
@@ -197,8 +197,7 @@ namespace GitHub.Runner.Worker.Container
 
             dockerOptions.Add($"--workdir {container.ContainerWorkDirectory}");
             dockerOptions.Add($"--rm");
-            dockerOptions.Add($"-t");
+
-            
             foreach (var env in container.ContainerEnvironmentVariables)
             {
                 // e.g. -e MY_SECRET maps the value into the exec'ed process without exposing